Hamilton Khaki Navy Scuba 40mm H82425110 Review: Size, Water Resistance & Is It Worth It?

If you have been searching for an honest answer to "Is the Hamilton Khaki Navy Scuba Auto 40mm worth it?", you have probably noticed that most results are either bare product listings or reviews of a different color, a different size, or a completely different Scuba model. This guide fixes that. We are focusing on one specific reference: the Hamilton Khaki Navy Scuba Auto 40mm H82425110, the version with the wave-textured lacquered white dial and the stainless steel bracelet. Below, our team at Lexor Miami, an authorized Hamilton retailer with a showroom in Miami, Florida, answers the questions U.S. buyers actually ask online: how it wears, whether it is a real dive watch at 100 meters, how the H-10 movement compares to the Powermatic 80, how it stacks up against the Tissot Seastar and the 43mm Scuba, and whether it is worth $975 in 2026.

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Hamilton Khaki Navy Scuba Auto 40mm H82425110 white wave dial on stainless steel bracelet, front view

Quick Answer: Is the Hamilton Khaki Navy Scuba 40mm H82425110 Worth It?

Yes, for the right buyer. The Hamilton Khaki Navy Scuba Auto 40mm H82425110 is a Swiss automatic, dive-inspired sports watch with a 40mm stainless steel case, a white wave-textured lacquered dial, sapphire crystal, a screw-down crown, 100 meters of water resistance, and Hamilton's H-10 automatic movement with an 80-hour power reserve and an antimagnetic Nivachron balance spring. At $975, it is an excellent everyday "go-anywhere" watch for swimming, beach days, travel, and the office. It is not a professional saturation diver, and if you need 300 meters and a ceramic bezel, you should look at the 43mm Khaki Navy Scuba instead. For most buyers, especially anyone with a small to medium wrist, the 40mm is the better-wearing, more versatile choice.

Hamilton Khaki Navy Scuba Auto 40mm H82425110: Specs at a Glance

Before we get into the details, here are the verified specifications for reference H82425110, taken from Hamilton's official U.S. product data and our own listing.

Specification Hamilton Khaki Navy Scuba Auto 40mm H82425110
Reference H82425110
Collection Hamilton Khaki Navy
Case diameter 40mm
Case thickness 13mm
Case material Stainless steel
Dial White, lacquered, stamped wave texture
Luminescence Super-LumiNova
Crystal Sapphire with anti-reflective coating
Bezel Unidirectional 60-minute diving bezel
Crown Screw-down
Water resistance 10 bar (100 m / 328 ft)
Movement H-10 automatic (self-winding)
Power reserve Up to 80 hours
Balance spring Nivachron (antimagnetic)
Functions Hours, minutes, seconds, date
Bracelet Stainless steel with folding clasp
Lug width 20mm
Warranty 2-year Hamilton international warranty (authorized dealer purchase)
Price at Lexor Miami $975

What Is the Hamilton Khaki Navy Scuba? A Short History

Hamilton is best known in the United States for its military heritage. The brand was founded in Lancaster, Pennsylvania, in 1892, and it supplied timepieces to American servicemen through both World Wars. The Khaki family grew out of that history: Khaki Field for the soldier, Khaki Aviation for the pilot, and Khaki Navy for the sailor and diver. Today Hamilton is Swiss-made and part of the Swatch Group, which gives it access to some of the most respected industrial watchmaking in the world, while it keeps its American design DNA.

The Khaki Navy Scuba is Hamilton's accessible dive-style watch. It was designed to be the watch you can wear on a boat, at the pool, at a beach bar on Ocean Drive, and later that night at dinner, without having to think twice. The 40mm generation, including the H82425110, is the more compact and more lifestyle-oriented member of the line, while the 43mm Khaki Navy Scuba is the more technical, 300-meter version. If you want to see how Hamilton applies the same military-heritage philosophy to its field watches, our Murph Match-Up: Which Hamilton Khaki Field Size Fits You Best? guide is a great companion read.

Is the Hamilton Khaki Navy Scuba 40mm a Real Dive Watch?

This is the single most common question U.S. buyers ask about this watch, and it deserves a straight answer. The Khaki Navy Scuba 40mm has many of the features you expect from a dive watch: a unidirectional 60-minute bezel, a screw-down crown, a sapphire crystal, Super-LumiNova on the dial and hands, and a sporty, legible layout with a bold seconds hand. What it does not have is the 200-meter minimum water resistance that the ISO 6425 standard requires for a certified diver's watch. It is rated to 100 meters (10 bar).

What 100 Meters Actually Means in Real Life

Water resistance ratings are measured in static, laboratory conditions, which is why a "100 m" rating does not mean you should take the watch 100 meters underwater. In practical, everyday terms, a 100-meter watch with a screw-down crown is suitable for:

  • Swimming in a pool or in the ocean
  • Snorkeling and surface water sports
  • Showering (avoid hot water and steam to protect the gaskets over time)
  • Rain, sweat, boating, fishing, and beach days
  • Paddleboarding, kayaking, and jet skiing

What it is not built for is recreational scuba diving at depth or professional diving. If you are a certified diver who regularly goes below 20 to 30 meters, you should either step up to the 300-meter 43mm Khaki Navy Scuba or use a dedicated dive computer. For the vast majority of buyers, though, especially in South Florida where "water use" means the beach, the pool, and the boat, 100 meters is all the water resistance you will ever need.

Care Tips to Keep It Water-Resistant

  • Always make sure the crown is fully screwed down before getting the watch wet.
  • Never operate the crown underwater.
  • Rinse the watch with fresh water after swimming in salt water or a chlorinated pool.
  • Have the gaskets and water resistance checked periodically, typically every few years or whenever the watch is serviced.

Hamilton Khaki Navy Scuba Auto 40mm H82425110 worn on the wrist, showing on-wrist size and proportions

How Does the Khaki Navy Scuba 40mm Wear? Sizing for Small and Medium Wrists

The second most common question is about size, and here the 40mm Scuba really shines. Reviewers and owners repeatedly describe it as a watch that "wears smaller than 40mm." That comes down to its proportions: a relatively short, downturned lug profile, a bezel that visually frames the dial rather than overwhelming it, and a case that is fully brushed, which keeps it from looking flashy or bulky.

Key Dimensions That Affect Fit

  • Diameter: 40mm. This is the sweet spot for most men's sports watches in 2026 and works well on a wide range of wrists, and it is a popular unisex size too.
  • Thickness: 13mm. Very reasonable for an automatic watch with a screw-down crown and a dive bezel. It slides under a shirt cuff without much fuss.
  • Lug width: 20mm. This is the most common strap size in the industry, which means you have hundreds of rubber, NATO, leather, and FKM strap options if you ever want to change the look.

Who Is the 40mm Size Best For?

As a general guideline:

  • Wrists around 6 to 6.75 inches: The 40mm is ideal. It looks proportional and does not overhang the wrist.
  • Wrists around 7 to 7.5 inches: It still wears comfortably and reads as a modern, balanced sports watch. Some buyers in this range may also consider the 43mm.
  • Wrists above 7.5 inches: The 40mm will look classic and understated; if you prefer more wrist presence, compare it with the 43mm model.

Hamilton does not publish an official lug-to-lug measurement for this reference, which is one of the reasons we always recommend trying it on. If you are in South Florida, you can visit our Miami showroom at 2371 NW 20th St and try the H82425110 side by side with other Hamilton models. If you are buying online, our 30-day return policy gives you time to make sure the fit is right. If you are still deciding between sizes across Hamilton's lineup, our Tissot vs Hamilton: Which Swiss Watch Brand Is Better in 2026? guide also covers sizing across both brands.

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Hamilton Khaki Navy Scuba 40mm vs 43mm: Which One Should You Buy?

Online, these two watches are often confused, and some comparison articles mix up their specifications. They share a name and a movement, but they are built for different people. Here is a clear, side-by-side breakdown using Hamilton's official U.S. specifications.

Feature Khaki Navy Scuba Auto 40mm (H82425110) Khaki Navy Scuba Auto 43mm
Case diameter 40mm 43mm
Thickness 13mm 12.58mm
Lug width 20mm 22mm
Water resistance 100 m (10 bar) 300 m (30 bar)
Bezel Unidirectional 60-minute bezel Unidirectional bezel with ceramic insert and engraved numerals
Movement H-10 automatic, 80h, Nivachron H-10 automatic, 80h, Nivachron
Crystal Sapphire, anti-reflective Sapphire
Typical U.S. retail $975 From around $1,225 (Hamilton U.S. list)
Best for Everyday wear, small to medium wrists, swimming, travel Larger wrists, serious water use, buyers who want a true 300 m diver

Choose the 40mm H82425110 If…

  • You want one watch you can wear every day, from the office to the beach.
  • You have a small to medium wrist, or you simply prefer a classic size.
  • Your water use is swimming, snorkeling, boating, and pool days.
  • You love the white wave dial, which gives it a brighter, more summer-ready personality.
  • You want to spend less while getting the same movement.

Choose the 43mm If…

  • You want a real 300-meter dive watch with a ceramic bezel.
  • You have a larger wrist and prefer more presence.
  • You actually scuba dive and want the extra safety margin.

Interested in a travel-ready version? Hamilton also offers a GMT variant of the Scuba. Read our Ultimate Traveler's Diver – Hamilton Khaki Navy Scuba GMT 43mm article to see how it compares.

The Hamilton H-10 Movement Explained

Inside the H82425110 is Hamilton's H-10 automatic caliber, and it is one of the strongest arguments for buying this watch. Here is what you need to know.

80-Hour Power Reserve

Most traditional automatic watches have a power reserve of around 38 to 42 hours. That means if you take your watch off Friday night and pick it up Monday morning, it has stopped and needs to be reset. The H-10 runs for up to 80 hours, which is more than three days. Take it off Friday evening and it is still running when you put it back on Monday. For anyone who rotates between two or three watches, this is a genuinely practical feature, not just a number on a spec sheet.

Nivachron Antimagnetic Balance Spring

Magnetism is one of the most common causes of an automatic watch suddenly running fast. Phones, laptops, tablets, speakers, handbag clasps, and even some car interiors carry magnetic fields. The H-10 uses a Nivachron balance spring, a titanium-based alloy developed within the Swatch Group, which is significantly more resistant to magnetism than a traditional balance spring. It also helps with resistance to temperature changes and shocks. In daily life, that translates to more stable accuracy over time.

Is the H-10 the Same as the Tissot Powermatic 80?

This is a frequent question on watch forums. Both the Hamilton H-10 and the Tissot Powermatic 80 are 80-hour automatic movements produced within the Swatch Group, based on the same ETA architecture, and they share the same core concept: a longer power reserve achieved through a lower beat rate and an improved mainspring. Each brand specifies, finishes, and regulates its version for its own collections. For a buyer, the practical takeaway is simple: you get a modern, proven, widely serviceable Swiss automatic movement with excellent everyday performance. If you want to dig deeper into how the two sister brands compare, see our Tissot vs Hamilton comparison.

Winding, Setting, and Servicing

  • Self-winding: The rotor winds the watch as you wear it. If it has stopped, give the crown a number of turns after unscrewing it to start it, then set the time.
  • Setting the date: As with most automatic watches, avoid changing the date when the time is between roughly 9 p.m. and 3 a.m., when the date mechanism is engaged.
  • Servicing: A typical automatic watch benefits from a service every several years, depending on use. Because the H-10 comes from the Swatch Group, service is widely available through authorized channels.

Close-up of the Hamilton Khaki Navy Scuba 40mm H82425110 white lacquered wave-textured dial with luminous hands

Why the White Wave Dial Is the One to Get

The Khaki Navy Scuba 40mm comes in several colorways, but the white dial version, H82425110, has a special appeal. The dial is lacquered and stamped with a wave texture inspired by the ocean. Under direct sunlight the texture catches light and creates subtle movement across the dial; indoors, it reads as clean, crisp white. Many enthusiasts compare this type of wave-pattern dial with the look of far more expensive Swiss dive watches, and it is one of the main reasons the Scuba punches above its price.

The Date Window Advantage

One recurring critique of the darker Khaki Navy Scuba dials is that the white date wheel stands out against a black or colored dial. On the white-dial H82425110, that issue largely disappears: the date window blends naturally into the dial, which gives the watch a cleaner, more cohesive look. If date-window symmetry is something you care about, this is the version to pick.

Legibility and Lume

A white dial with dark hands and markers is one of the most legible combinations in watchmaking, which makes this reference extremely easy to read at a glance in daylight. The hands and indices are treated with Super-LumiNova for low-light visibility. As with most white-dial watches, the glow contrast in the dark is naturally a bit softer than on a black-dial diver, so if night legibility is your top priority, keep that in mind. For daytime use, outdoor sports, and the bright South Florida sun, the white dial is hard to beat.

Style Versatility

A white dial on a steel bracelet is one of the most versatile looks in a watch wardrobe. It pairs with linen shirts and shorts in summer, a polo at the golf course, a navy blazer for business, and casual dinner outfits. It is also a common pick for buyers who want a "summer watch" that feels fresh rather than tactical.

Bezel, Crystal, and Case: Build Quality Details

The 60-Minute Unidirectional Bezel

The bezel rotates in one direction only, a safety feature on dive-style watches so that an accidental knock can only shorten, never extend, the timed interval. In daily life it is useful for timing parking meters, cooking, workouts, or laps. Hamilton refreshed the bezel typography on this generation, making the numerals cleaner and more modern. One honest note from reviewers: the bezel can feel a little stiff and harder to grip when the watch is off the wrist. Once it is on, it turns with confident, positive clicks.

Sapphire Crystal With Anti-Reflective Coating

The crystal is synthetic sapphire, which is highly scratch-resistant, and it has an anti-reflective coating that cuts glare. That matters more than people think under strong Florida sunlight, where a reflective crystal can make a watch hard to read outdoors.

Brushed Stainless Steel Case and Screw-Down Crown

The case is stainless steel with a mostly brushed finish, which gives the Scuba a tool-watch look and hides small scratches better than high-polish surfaces. The screw-down crown seals the case against water when properly closed and is a must-have feature on any watch you plan to swim with.

Angled view of the Hamilton Khaki Navy Scuba Auto 40mm H82425110 stainless steel bracelet and case profile

Bracelet, Clasp, and Strap Options

The H82425110 comes on a stainless steel bracelet with a folding clasp, which makes it a true all-rounder from day one. The bracelet tapers to match the case and feels secure and comfortable for daily wear.

Bracelet Sizing

The bracelet is adjusted by removing links. If you buy from Lexor Miami in person, our team can size it for you in the showroom. If you order online, a local watchmaker or jeweler can size it quickly, or you can contact us by phone or WhatsApp at +1 786 333 1331 for guidance.

Can You Put the Khaki Navy Scuba on a Rubber Strap?

Absolutely. With a 20mm lug width, the H82425110 is compatible with a huge variety of straps. Popular options among owners include:

  • Rubber or FKM straps for swimming and beach days, especially in navy, white, or orange.
  • NATO and nylon straps for a lighter, more casual military look that nods to the Khaki heritage.
  • Sailcloth straps for a nautical, yacht-club style.
  • Leather straps for a dressier look, but keep them away from water.

Keeping the original bracelet and adding a rubber strap gives you two completely different watches for the price of one. In Miami's humidity, many owners prefer rubber in summer and the bracelet the rest of the year.

Buy the Hamilton Khaki Navy Scuba 40mm Today

Hamilton Khaki Navy Scuba vs Tissot Seastar, Mido Ocean Star, Seiko, and Longines

If you are shopping for a Swiss automatic dive-style watch under or around $1,000, you are probably cross-shopping a few of the models below. Here is how they compare to the Hamilton Khaki Navy Scuba 40mm H82425110 on the points U.S. buyers care about most.

Model Size Water Resistance Movement / Power Reserve Approx. U.S. Price Best For
Hamilton Khaki Navy Scuba Auto 40mm H82425110 40mm 100 m H-10 automatic, 80h, Nivachron $975 Everyday versatility, compact fit, white wave dial
Tissot Seastar 1000 Powermatic 80 40mm 40mm 300 m Powermatic 80, 80h Around $750 and up Maximum depth rating on a budget
Mido Ocean Star 200 42.5mm 200 m Caliber 80, 80h Around $1,000 Classic diver styling with ISO-level water resistance
Hamilton Khaki Navy Scuba Auto 43mm 43mm 300 m H-10 automatic, 80h, Nivachron From around $1,225 Bigger wrists, real diving
Longines HydroConquest Multiple sizes 300 m Longines automatic, 72h Significantly higher Brand prestige, entry-level luxury

Hamilton Scuba 40mm vs Tissot Seastar 1000 40mm

The Tissot Seastar 1000 is the most common rival. On paper, it wins on water resistance (300 m) and usually on price. The Hamilton wins on design personality: the wave-textured dial, the brushed tool-watch case, and the American military heritage give it a more distinctive, less generic look. The Hamilton also uses a Nivachron balance spring for magnetic resistance. Buy the Tissot if depth rating and price are your top criteria; buy the Hamilton if design, heritage, and everyday wearability matter more to you.

Hamilton Scuba 40mm vs Mido Ocean Star 200

The Mido Ocean Star 200 is another Swatch Group diver with an 80-hour movement and 200 meters of water resistance. It wears larger and leans into a more traditional diver aesthetic. The Hamilton is more compact and more casual-luxury in feel. We cover the Mido in depth in our Mido Ocean Star 200 Review 2026: Worth It? and our Mido Ocean Star 39 Blue Dial buying guide, which is a great alternative if you want a smaller Mido diver.

Hamilton Scuba 40mm vs Seiko Divers

Seiko offers excellent value divers such as the Prospex range, many with 200 meters of water resistance. Seiko movements typically have a shorter power reserve than the H-10, and the overall design language is very different: Seiko is more Japanese tool-watch, Hamilton is more Swiss-American heritage. For a deep dive into one of the most popular Seiko alternatives, read our Seiko SRPE05 King Turtle review.

Hamilton Scuba 40mm vs Longines HydroConquest

The Longines HydroConquest is a step up into entry-level luxury, with 300 meters of water resistance and more refined finishing, but at a considerably higher price. If you are deciding between the two, the question is whether brand prestige and extra depth rating are worth the premium. For a daily-wear sports watch, most buyers find the Hamilton delivers the majority of the experience for far less.

Pros and Cons of the Hamilton Khaki Navy Scuba 40mm H82425110

Pros

  • Compact 40mm case that wears smaller than its size suggests
  • Beautiful lacquered white wave-textured dial with a cohesive date window
  • H-10 automatic movement with 80-hour power reserve
  • Nivachron antimagnetic balance spring for stable accuracy
  • Sapphire crystal with anti-reflective coating
  • Screw-down crown and 100 m water resistance for swimming
  • Steel bracelet with folding clasp, plus 20mm lugs for easy strap swaps
  • Swiss-made with genuine American military heritage

Cons

  • 100 m water resistance is below the ISO standard for professional dive watches
  • The bezel can feel stiff to turn when the watch is off the wrist
  • Lume on a white dial is naturally less striking than on a black dial
  • Rivals like the Tissot Seastar offer more depth rating for less money

Who Should Buy the Hamilton Khaki Navy Scuba 40mm?

The First "Real" Swiss Automatic Buyer

If this is your first serious watch, the H82425110 is an outstanding choice. It is Swiss, automatic, robust, water-resistant enough for everyday life, and versatile enough to be your only watch. Owners on watch forums frequently recommend the Khaki Navy Scuba as a first nice watch for exactly these reasons.

The Summer and Beach Watch Buyer

The white dial gives this watch a bright, vacation-ready personality. For anyone living in or traveling to Miami, the Florida Keys, or the Caribbean, it is an ideal summer watch.

The Watch Collector Who Rotates

Thanks to the 80-hour power reserve, the Scuba is perfect for collectors who rotate watches. It stays running over a weekend off the wrist.

The Gift Buyer

The Khaki Navy Scuba is one of the most popular watch gifts in its price range, especially for birthdays, graduations, anniversaries, and Father's Day. Hamilton also offers engraving on many of its watches, and the steel caseback makes it a meaningful keepsake. For more gift ideas, see our Ultimate Father's Day Watch Gift Guide 2026.

Side angle of the Hamilton Khaki Navy Scuba Auto 40mm H82425110 showing the screw-down crown and unidirectional bezel

Is the Hamilton Khaki Navy Scuba 40mm Worth $975?

Hamilton's official U.S. price for the H82425110 is $975, and that is the price you will find at Lexor Miami. Earlier generations of the 40mm Scuba sold for less, so buyers sometimes ask whether today's price is justified. Here is the case for yes:

  • Movement upgrade: The current H-10 with Nivachron is a meaningful technical step up, combining 80 hours of reserve with antimagnetic protection.
  • Dial quality: The lacquered, stamped wave dial is a premium detail at this price.
  • Bracelet included: You get a steel bracelet with a folding clasp, which many brands charge extra for.
  • Long-term value: A well-maintained Swiss automatic can last decades. Spread over years of daily wear, the cost per wear becomes very low.

Where the value argument is weaker is purely on depth rating, where the Tissot Seastar gives you more for less. If 100 meters is enough for your lifestyle, and for most people it is, the Hamilton is the more characterful and more wearable watch.

Authorized Dealer vs Gray Market: Why Where You Buy Matters

When researching this watch, you will find the Khaki Navy Scuba listed on marketplaces such as eBay and Chrono24, sometimes at lower prices. Before you buy, it is important to understand the difference between an authorized dealer and the gray market.

The Risks of Gray-Market Watches

  • Warranty issues: Hamilton's 2-year international warranty is typically valid only when the watch is purchased from an authorized retailer with a properly stamped warranty card.
  • Uncertain origin: Gray-market watches may be older stock, previously displayed, or imported through unofficial channels.
  • Counterfeit risk: Popular models are frequently replicated. Without an authorized source, authenticity is harder to guarantee.
  • Return limitations: Marketplace sellers often have restrictive or unclear return policies.

Hamilton Khaki Navy Scuba Auto 40mm H82425110 white dial photo collage with Lexor Miami authenticity badge

Why Buy Your Hamilton From Lexor Miami

  • Authorized retailer: Every Hamilton watch we sell is 100% authentic, brand-new, and supplied through official channels.
  • Official warranty: Your purchase is covered by Hamilton's 2-year international warranty.
  • Free U.S. shipping: Orders over $150 ship free within the 48 contiguous U.S. states, with express options available.
  • 30-day returns: Change your mind? We offer 30-day returns with a prepaid label.
  • Miami showroom: Visit us at 2371 NW 20th St, Miami, FL, Monday to Saturday, 10 a.m. to 6 p.m., to see the watch in person and have the bracelet sized.
  • Real people to help: Call or WhatsApp our team at +1 786 333 1331 with any question before or after your purchase.

If you want to learn more about how to shop safely for watches in South Florida, read our Where to Buy Authentic Luxury Watches in Miami (2026 Buying Guide).

Shop the Hamilton Khaki Navy Scuba Auto 40mm

Hamilton Khaki Navy Scuba Auto 40mm H82425110 white dial stainless steel watch

Hamilton Khaki Navy Scuba Auto 40mm H82425110

$975.00

Swiss automatic H-10 movement with 80-hour power reserve, white lacquered wave dial, sapphire crystal, 100 m water resistance, and stainless steel bracelet.

Shop Now

Bringing It All Together: The Smart Everyday Swiss Diver

The Hamilton Khaki Navy Scuba Auto 40mm H82425110 is not trying to be a professional saturation diver, and that is exactly why it works so well. It takes the best parts of a dive watch, a rotating bezel, a screw-down crown, sapphire, lume, and real water resistance, and packages them in a compact, comfortable 40mm case with one of the most attractive dials in its price range. The H-10 movement adds genuine, everyday practicality with its 80-hour power reserve and antimagnetic Nivachron balance spring. Whether you are a first-time Swiss watch buyer, a collector looking for a summer rotation piece, or someone shopping for a meaningful gift, this is a watch that is easy to live with and easy to love.

And because where you buy matters, purchasing from an authorized Hamilton retailer like Lexor Miami means your watch arrives authentic, covered by the official warranty, and backed by a real team in Miami that can help you with sizing, questions, and service.

Get Your Hamilton Khaki Navy Scuba 40mm at Lexor Miami

Final Thoughts

If you have read this far, you already know whether the Khaki Navy Scuba 40mm fits your life. If your water use is swimming, snorkeling, boating, and beach days; if you want a compact, comfortable Swiss automatic; and if you love the idea of a white ocean-wave dial that looks as good with a T-shirt as it does with a blazer, the H82425110 is one of the best choices you can make for under $1,000. If you need a true 300-meter diver or want more wrist presence, look at the 43mm Scuba instead.

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Frequently Asked Questions

1. Can I swim with the Hamilton Khaki Navy Scuba Auto 40mm H82425110?

Yes. The H82425110 is water-resistant to 100 meters (10 bar) and has a screw-down crown, so it is suitable for swimming, snorkeling, showering, and water sports. Make sure the crown is fully screwed down before getting it wet, and never operate the crown underwater. It is not designed for deep scuba diving.

2. What is the difference between the Khaki Navy Scuba 40mm and 43mm?

The 40mm H82425110 has a 40mm case, 20mm lugs, 100 m water resistance, and a $975 price, and it is designed for everyday wear. The 43mm Khaki Navy Scuba has a larger case, 22mm lugs, 300 m water resistance, and a ceramic bezel insert, and it costs more. Both use the same H-10 automatic movement with an 80-hour power reserve.

3. How long is the power reserve of the Hamilton Khaki Navy Scuba?

The H-10 automatic movement inside the Khaki Navy Scuba Auto 40mm has a power reserve of up to 80 hours. That means you can take it off on Friday evening and it will still be running on Monday morning.

4. Is the Hamilton Khaki Navy Scuba 40mm good for small wrists?

Yes. Owners and reviewers consistently say the Khaki Navy Scuba 40mm wears smaller than its diameter suggests thanks to its compact proportions and 13mm thickness. It is an excellent fit for wrists around 6 to 7 inches, and it still looks balanced on larger wrists.

5. Is the Hamilton Khaki Navy Scuba antimagnetic?

Yes. The H-10 movement uses a Nivachron balance spring, an alloy that is significantly more resistant to magnetic fields than a traditional balance spring. This helps keep the watch accurate around phones, laptops, and other everyday magnetic sources.

6. Where can I buy an authentic Hamilton Khaki Navy Scuba 40mm in Miami?

You can buy the authentic Hamilton Khaki Navy Scuba Auto 40mm H82425110 from Lexor Miami, an authorized Hamilton retailer located at 2371 NW 20th St, Miami, FL. You can shop online with free shipping on orders over $150 within the 48 contiguous U.S. states, or visit the showroom Monday to Saturday from 10 a.m. to 6 p.m. Every watch includes the official Hamilton 2-year international warranty.

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