Hamilton Khaki Field Quartz H68401735 Review: Black PVD, Size, Battery & Is It Worth It?

If you have been looking at the Hamilton Khaki Field Quartz H68401735, you have probably noticed that most listings online tell you very little beyond "40mm, black PVD, quartz." That leaves the questions that actually matter unanswered. Is a quartz field watch a smart buy, or should you spend on an automatic instead? Will the black PVD coating scratch? How long does the battery last? Is 40mm the right size for your wrist? Why does this model cost more than Hamilton's newer 38mm quartz? And can you swim with it? This guide answers each of those questions honestly, from the perspective of an authorized Hamilton dealer in Miami with more than 20 years in the watch business. By the end, you will know whether the all-black Khaki Field Quartz is the right everyday watch for you, and where to buy it with full manufacturer warranty from Lexor Miami's authorized Hamilton watch collection.

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Quick Verdict: Who the Hamilton H68401735 Is For

The Hamilton Khaki Field Quartz H68401735 is a Swiss-made, all-black military field watch built for men who want a tough, low-maintenance daily watch with real heritage behind it. It pairs a 40mm black PVD stainless steel case with a black dial, full Arabic numerals, a 12/24-hour military scale, a date window, Super-LumiNova lume, a sapphire crystal and a black rubber strap. Inside is a Swiss quartz movement, so there is no winding, no power reserve to manage and no daily time-drift to correct.

At $675 at Lexor Miami, it is a strong choice if you want a stealthy, modern take on a classic field watch that you can wear to work, to the gym, on a weekend trip or in the Miami rain without thinking twice. It is probably not for you if you want to watch a mechanical movement tick through a caseback, if you prefer a polished dress watch, or if you plan to dive regularly. We will go through each of those trade-offs honestly below.

Hamilton H68401735 Specifications at a Glance

Here is the full spec sheet in one place. These details come from Hamilton's official product page and Lexor Miami's product listing.

Specification	Hamilton Khaki Field Quartz H68401735
Brand / Collection	Hamilton Khaki Field
Reference	H68401735
Movement	Swiss quartz, ETA caliber F07.115
Functions	Hours, minutes, central seconds, date
Case Diameter	40mm
Case Thickness	9.6mm
Lug Width	20mm
Case Material	Stainless steel with black PVD coating
Crystal	Sapphire
Dial	Black with Arabic numerals and 12/24-hour military scale
Luminous	Super-LumiNova on hands and numerals
Strap	Black rubber, 20mm
Buckle	Hamilton "H" pin buckle
Water Resistance	5 bar / 50m / 164 ft
Swiss Made	Yes
Price at Lexor Miami	$675

Now let's turn those numbers into answers. The sections below follow the questions U.S. buyers ask most often about the Khaki Field Quartz and about Hamilton field watches in general.

A Short History: Why the Khaki Field Matters

Before getting into the technical questions, it helps to understand why the Khaki Field is one of the most recognized watches in the world. Hamilton was founded in 1892 in Lancaster, Pennsylvania, and became famous for precision railroad watches. During the First and Second World Wars, Hamilton supplied large numbers of watches to the U.S. armed forces. Those military watches had to be legible at a glance, readable at night and durable enough to survive the field. That brief created the design language you still see on the Khaki Field today: high-contrast Arabic numerals, a 24-hour military scale, luminous hands and a no-nonsense case.

Today Hamilton is based in Switzerland and part of the Swatch Group, which is why modern Khaki Field watches carry "Swiss Made" on the dial while still honoring an American military heritage. The Khaki Field line has also become a fixture in Hollywood. If you are a film fan, our reviews of the Hamilton Khaki Field Murph 38mm, made famous by the movie Interstellar, show how far the family has traveled from the battlefield.

The H68401735 takes that heritage and gives it a modern, tactical edge. Instead of the classic brushed steel or khaki-green look, it goes fully black: black PVD case, black dial and black rubber strap. It is the stealth version of a design that has been proven for more than a century.

Quartz vs. Automatic: Is a Quartz Khaki Field a Smart Buy?

This is the biggest debate online about any Khaki Field. Watch enthusiasts often push buyers toward the mechanical or automatic versions, while many everyday owners say the quartz is the more practical watch. Both sides have a point, so here is a fair comparison.

Factor	Khaki Field Quartz (H68401735)	Khaki Field Automatic / Mechanical
Accuracy	Very high; quartz is far more accurate than mechanical	Typically drifts a few seconds per day
Maintenance	Battery change every few years	Periodic full service; wind or wear regularly
Grab-and-go	Always running and on time	Stops if left unworn beyond its power reserve
Shock tolerance	Excellent for a tool watch	Good, but mechanical parts are more delicate
Seconds hand	Ticks once per second	Smooth sweeping motion
Caseback	Solid	Often a display caseback
Emotional appeal	Practical, reliable	Traditional craftsmanship

The honest takeaway: if you love the romance of mechanical watchmaking, the sweeping seconds hand and the idea of a movement powered by your wrist, an automatic will satisfy you more. But if you want a watch you can pick up from a drawer after two weeks and have it show the correct time and date immediately, quartz is simply the better tool. Many reviewers point out that quartz movements handle shocks better than mechanical ones, which makes them a natural fit for a field watch that is meant to be worn hard.

There is also nothing "cheap" about quartz in this context. The H68401735 uses a Swiss ETA quartz caliber, made by the Swatch Group's own movement maker, not a generic mass-market module. Hamilton's own product page highlights how little the watch varies over a year. For daily wear, that level of accuracy is something no mechanical watch at any price can match.

If you are still torn, compare it with a mechanical option in our Hamilton watch collection and think about how you actually wear watches. If you rotate between several, quartz removes the hassle of resetting. If this will be your only watch and you wear it daily, either type will serve you well.

See the Swiss Quartz Khaki Field H68401735

How Long Does the Battery Last, and How Do You Replace It?

Battery life is one of the most common questions from quartz buyers. Swiss ETA quartz movements are known for efficient power use, and a battery in a watch like this typically lasts several years under normal use. Hamilton does not list an exact battery lifespan on the product page for this reference, so treat "several years" as the realistic expectation rather than a guaranteed figure.

A few practical tips:

• Watch for the signs. When the battery is getting low, many quartz watches begin to behave differently, for example with the seconds hand moving irregularly. If you notice unusual seconds-hand movement or the watch starts losing time, it is time for a new battery.
• Replace it promptly. A dead battery left inside a watch for a long time can leak and damage the movement. Replace it soon after it runs out.
• Use a qualified watchmaker. Opening the caseback affects the gaskets that keep water out. A professional battery change should include checking or replacing the gasket, and ideally a water-resistance test.
• Keep your warranty intact. Having service done by a qualified or authorized service center protects your investment and keeps the watch performing as intended.

Compared with the periodic full service that mechanical watches require, a battery change is simple and affordable. Over the life of the watch, that is one of the strongest arguments for the quartz Khaki Field.

How Big Does the 40mm Khaki Field Wear?

The H68401735 measures 40mm across and just 9.6mm thick, with a 20mm lug width. For a field watch, that is a modern, balanced size. It is larger than the classic 38mm Khaki Field, but still far from oversized.

Several factors make it wear comfortably:

• Slim profile: At under 10mm thick, it slides easily under a shirt cuff and does not feel top-heavy, which is one of the practical advantages of a quartz movement.
• Black PVD finish: Dark colors visually shrink an object. A 40mm black watch looks more compact on the wrist than a 40mm polished steel one.
• Rubber strap: The strap is light and flexible, so the watch sits close to the wrist without the weight of a steel bracelet.
• Standard 20mm lugs: This makes the watch easy to fit and easy to personalize with other straps later.

Wrist Size Recommendations

• Wrists around 6 to 6.5 inches: The 40mm case will look modern and noticeable. If you prefer a vintage fit, the 38mm Khaki Field may suit you better.
• Wrists from 6.5 to 7.5 inches: This is the sweet spot. The watch looks balanced and proportional.
• Wrists above 7.5 inches: The 40mm case gives you more presence than a 38mm while staying true to field-watch proportions.

If you want to compare sizes across the Khaki Field family, our guide Which Hamilton Khaki Field Size Fits You Best? walks through the options in detail.

Will the Black PVD Coating Scratch?

This is the question almost every buyer of a black watch asks, and it deserves a straight answer. PVD (physical vapor deposition) is a thin, hard coating bonded to the stainless steel case. It is far more durable than paint or simple plating and holds up well to normal daily wear. However, no coating is indestructible.

Here is what to expect:

• Everyday wear: Light contact with sleeves, desks and car interiors is not a problem for a quality PVD finish.
• Hard knocks: A sharp impact against concrete, brick or metal can scratch through the coating and expose the steel underneath, which shows as a bright line on a black surface.
• Edges over time: After years of heavy wear, the most exposed edges of any PVD watch can show gradual wear. Many owners see this as honest character on a field watch.
• Repairs: Unlike polished steel, PVD cannot simply be buffed back to new. Deep marks require professional refinishing.

The good news is that the most important surface, the crystal, is sapphire. Sapphire is extremely scratch resistant, so the dial will stay clear and readable even if the case collects a few marks over the years. Many watches at similar prices still use mineral crystal, so sapphire is a genuine advantage here.

To keep the PVD looking its best, take the watch off for heavy manual work, avoid rubbing it against rough walls or railings, and store it separately from other metal watches and jewelry.

Can You Swim With the Hamilton H68401735?

The H68401735 is water resistant to 5 bar (50 meters / 164 feet). That rating means it is protected against rain, splashes, handwashing and brief, shallow water contact. In practice, many owners do wear 50m watches for casual surface swimming, but it is not a dive watch, and you should not use it for diving, water sports with high-pressure impact such as jet skiing, or long sessions in the water.

Practical guidance for Miami buyers:

• Rain and humidity: No problem at all. The watch is built for outdoor wear.
• Pool and beach: For occasional light swimming, the watch can handle it, but if you swim often, consider a dedicated diver like the Hamilton Khaki Navy Scuba.
• Never operate the crown in water: Set the time and date only when the watch is dry.
• Rinse after salt water: Salt and sand are hard on gaskets and straps. Rinse with fresh water and dry the watch after the beach.
• Avoid heat: Hot tubs, saunas and hot showers can stress the seals over time.

The rubber strap is a real benefit in this climate. Unlike leather, it will not absorb sweat, crack from humidity or develop odor, which makes the H68401735 a very practical choice for South Florida summers.

If swimming and snorkeling are part of your routine, read our guide to the Hamilton Khaki Navy Scuba GMT, which is built for serious water use.

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Reading the Dial: The 12/24-Hour Military Scale Explained

One of the details that sets the H68401735 apart from Hamilton's newest simplified quartz models is its dual 12/24-hour dial. Large Arabic numerals mark the standard 1 through 12 hours, while a smaller inner track shows 13 through 24. This lets you read military time at a glance: when the hour hand points to the 3, you know it is either 3:00 or 15:00.

This layout comes directly from the watches Hamilton made for soldiers, pilots and navigators, where 24-hour time eliminated confusion between morning and afternoon. Many field-watch enthusiasts consider the 24-hour track an essential part of the look, and some reviews of Hamilton's newer simplified quartz models point to its absence as the one thing they miss. On the H68401735, you get the full traditional layout.

Other dial details worth knowing:

• Super-LumiNova: The hands and numerals glow after exposure to light, keeping the watch readable in a dark room, on a night flight or in a car at night.
• Date window: A practical date display is placed at 3 o'clock, adding everyday usefulness without cluttering the dial.
• High contrast: Light numerals on a matte black dial remain easy to read in bright Florida sun, and the sapphire crystal keeps the view clear.

Why Does the H68401735 Cost More Than Hamilton's 38mm Quartz?

Buyers researching the Khaki Field Quartz often notice that Hamilton also offers a newer 38mm Khaki Field Quartz at a lower price. It is a fair question, so here is the difference in simple terms.

Feature	Khaki Field Quartz H68401735	Newer Khaki Field Quartz 38mm
Case size	40mm	38mm (also 33mm)
Case finish	Black PVD coating	Bead-blasted stainless steel
Dial	Black with 12/24-hour military scale and date	Simplified vintage-style dial without inner 24-hour track
Strap	Black rubber with H buckle	Fabric NATO-style strap
Crystal	Sapphire	Sapphire
Water resistance	50m	50m
Style	Modern, stealth, tactical	Vintage, classic military

In short, you pay more for the black PVD treatment, the larger 40mm case, the traditional 24-hour dial with date and the rubber strap. If you want the vintage 1980s look in a smaller size, the 38mm is a great watch; we reviewed it in From Battlefield to Wrist: The Hamilton Khaki Field Quartz 38mm. If you want a darker, more modern field watch with the full military dial, the H68401735 is the one to choose.

Is the H68401735 a Good First Swiss Watch or Gift?

Many of the people who ask about this model are buying their first "real" watch, or buying one as a gift for a graduation, a promotion, a birthday or Father's Day. For both situations, the Khaki Field Quartz is one of the safest choices we can recommend.

As a first Swiss watch, it removes every common frustration new owners run into. There is no learning curve: no winding, no resetting after a weekend off the wrist and no worrying about magnetism or daily time drift. It is thin enough to wear with a dress shirt, tough enough for the weekend and neutral enough to match almost any wardrobe. It also introduces you to a brand with a genuine story, which is often what turns a first watch into a lifelong interest.

As a gift, it has several advantages:

• Easy fit: The rubber strap adjusts with a simple buckle, so you do not need to know the recipient's exact wrist size in advance, unlike a steel bracelet that needs links removed.
• Low maintenance for the recipient: Someone new to watches will not have to learn how to care for a mechanical movement.
• A story to tell: Hamilton's military heritage and Hollywood appearances give the gift meaning beyond the object itself.
• Universal style: An all-black field watch works for students, professionals, outdoor lovers and anyone who prefers understated design.

For more gift ideas across brands and budgets, see our Ultimate Father's Day Watch Gift Guide.

Alternatives to Consider

A good buying guide should show you what else is out there. If the H68401735 is close but not quite right, here are the directions our customers usually consider:

• A mechanical Khaki Field with a movie story: The Hamilton Khaki Field Murph 38mm White Dial gives you the Interstellar connection with an automatic movement.
• A limited edition field watch: The Hamilton Khaki Field Auto The Odyssey Limited Edition is for collectors who want something rarer.
• A gaming tie-in: Fans of the franchise may like the Hamilton Khaki Field Auto 38mm Call of Duty Special Edition.
• A true dive watch: If water is your priority, see the Hamilton Khaki Navy GMT 43mm.

You can browse every Hamilton model currently available in our Hamilton watches collection, from Khaki Field and Khaki Navy to Ventura and Jazzmaster.

Is the Hamilton Khaki Field Quartz H68401735 Worth It?

It depends on what you want from a watch, so let's break it down by buyer type.

It is worth it if you want:

• A genuine Swiss field watch with military heritage. Few brands can claim Hamilton's real history of supplying watches to the U.S. armed forces.
• Zero hassle. A Swiss quartz movement means precise timekeeping and no winding or resetting.
• A stealth, modern look. The all-black PVD design is sharper and more contemporary than a classic steel field watch.
• Sapphire crystal at this price. The most scratch-resistant crystal material protects the dial.
• A watch built for heat and humidity. The rubber strap and 50m water resistance suit Miami life perfectly.

You may want something else if:

• You want a mechanical movement and a display caseback.
• You prefer a polished dress watch for formal occasions.
• You plan to dive or spend long periods in the water.
• You want a smaller, vintage-sized 38mm watch.

For its target buyer, the H68401735 is one of the most practical Swiss watches you can buy: legible, tough, accurate, comfortable and backed by one of the most respected names in military watchmaking. At $675 from an authorized dealer with full manufacturer warranty, it is a fair price for everything you get.

Buy the Hamilton H68401735 at Lexor Miami

Why Buy From an Authorized Hamilton Dealer

The Khaki Field is one of the most copied watch designs in the world, so where you buy matters. Buying from an authorized Hamilton dealer like Lexor Miami guarantees:

• 100% authentic, brand-new watches sourced through authorized channels, never gray-market.
• Full Hamilton international warranty. Manufacturer warranties are generally honored only for watches purchased from authorized retailers.
• Original box and papers, important for gifting, resale and future service.
• Expert advice on sizing, straps and choosing between quartz and automatic models.
• A trusted local business. Lexor Miami is a family business with more than 20 years in the industry and more than 3,100 five-star Google reviews.

Visit Lexor Miami: Try the Khaki Field in Person

If you are in South Florida, the fastest way to decide between 38mm and 40mm, or between quartz and automatic, is to try them on. Our showroom is at 2371 NW 20th St, Miami, FL, with free parking and security on premises. We are open Monday through Saturday from 10 AM to 6 PM. You can also reach our team by phone or WhatsApp at +1 786 333 1331 for questions about availability, sizing or gifting.

Whether you are shopping from Miami, Doral, Hialeah, Coral Gables, Miami Beach, Fort Lauderdale or anywhere in the continental United States, you can order the Hamilton Khaki Field Quartz H68401735 online for delivery or visit us to see it on your wrist before you buy.

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How to Care for Your Hamilton H68401735

• Clean the rubber strap regularly. Rinse it with lukewarm water and mild soap, then dry it. This keeps sweat, sunscreen and salt from building up.
• Wipe the case gently. Use a soft microfiber cloth. Avoid abrasive pads or polishing cloths, which can dull a PVD finish.
• Keep the crown pushed in. Always make sure the crown is fully in before exposure to water.
• Replace the battery promptly. Do not leave a dead battery inside the watch.
• Test water resistance after battery changes. Ask for a gasket check whenever the caseback is opened.
• Avoid chemicals. Perfume, cleaning products and solvents can affect coatings and straps.

How to Style an All-Black Field Watch

One of the biggest advantages of the H68401735 is how easy it is to wear. A black field watch works with almost everything:

• Everyday casual: T-shirt, jeans and sneakers. The black watch looks modern and understated.
• Office smart-casual: An oxford shirt, chinos and dark loafers. The slim 9.6mm case fits under a cuff.
• Gym and outdoor: The rubber strap handles sweat, and the lume stays readable at early-morning runs.
• Travel: The 24-hour scale and date make it a practical companion for flights and different schedules.
• Complete the look: Matte black or dark tortoise sunglasses pair naturally with an all-black watch.

Final Thoughts

The Hamilton Khaki Field Quartz H68401735 does not try to be a luxury dress watch or a mechanical showpiece. It is a modern, all-black version of one of the most proven watch designs in history: Swiss quartz precision, a slim 40mm black PVD case, a legible 12/24-hour military dial, sapphire crystal, Super-LumiNova and a comfortable rubber strap. The main trade-offs, quartz rather than automatic and 50m rather than diver-level water resistance, are easy to judge once you know how you plan to wear it.

If you want a reliable everyday watch with real military heritage and a stealthy modern look, the H68401735 checks every box. Compare it with the rest of our authorized Hamilton watch selection, or go straight to the product page to order yours.

Featured in this guide:

• Hamilton Watches Khaki Field Quartz H68401735 – 40mm black PVD, Swiss quartz, sapphire crystal, 12/24-hour dial, rubber strap – $675

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Frequently Asked Questions About the Hamilton Khaki Field Quartz H68401735

Is the Hamilton Khaki Field Quartz H68401735 Swiss made?

Yes. The H68401735 is Swiss made and uses a Swiss ETA quartz movement. Hamilton is based in Switzerland as part of the Swatch Group, while its Khaki Field design honors the brand's American military history.

How long does the battery last in the Hamilton Khaki Field Quartz?

Swiss ETA quartz movements are efficient, and a battery in this type of watch typically lasts several years with normal use. When the battery runs low, replace it promptly with a qualified watchmaker and have the gaskets checked to protect water resistance.

Can I swim with the Hamilton H68401735?

The watch is water resistant to 50 meters (5 bar). It handles rain, splashes and handwashing, and it can manage occasional light surface swimming, but it is not a dive watch. For regular swimming or snorkeling, choose a dedicated diver such as the Hamilton Khaki Navy Scuba.

Does the black PVD coating scratch?

PVD is a hard, durable coating that handles normal daily wear well, but a sharp impact against concrete or metal can scratch through it and expose the steel underneath. The crystal is sapphire, which is highly scratch resistant, so the dial stays clear.

What size is the Hamilton Khaki Field Quartz H68401735?

The case measures 40mm in diameter and 9.6mm thick, with a 20mm lug width. It fits most naturally on wrists from about 6.5 to 7.5 inches, and its black finish makes it look more compact than a steel watch of the same size.

Where can I buy an authentic Hamilton Khaki Field Quartz in Miami?

You can buy the Hamilton Khaki Field Quartz H68401735 from Lexor Miami, an authorized Hamilton dealer at 2371 NW 20th St, Miami, FL. It is available online for delivery across the continental United States or in person at the showroom, brand new with the full Hamilton manufacturer warranty.

Related Reading From Lexor Miami

• From Battlefield to Wrist: The Hamilton Khaki Field Quartz 38mm Is Your Next Everyday Watch
• Murph Match-Up: Which Hamilton Khaki Field Size Fits You Best?
• Hamilton Khaki Field Murph 38mm Blue Dial (H70405140) Review
• Hamilton Khaki Field Auto The Odyssey Limited Edition
• The Ultimate Traveler's Diver: Hamilton Khaki Navy Scuba GMT 43mm
• The Ultimate Father's Day Watch Gift Guide 2026