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Caliber 5X63 GPS Solar · 43.4mm x 12.4mm super-hard coated titanium · Black geometric dial · Quick-change bracelet system · $2,700 at Lexor Miami, an authorized Seiko Luxe dealer with a 3-year manufacturer's warranty and free shipping in the contiguous US.

Seiko Astron HAB002 GPS Solar dual-time chronograph with black geometric dial and titanium bracelet, angled view
The Seiko Astron HAB002, the black-dial expression of Seiko's 2026 GPS Solar Dual-Time Chronograph.

Shop the Seiko Astron HAB002 – $2,700

Seiko Astron HAB002 at a Glance

The Seiko Astron HAB002 (full reference HAB002J1) is a 2026 GPS Solar dual-time chronograph with a black, charcoal-toned dial patterned in interlocking triangles, a 43.4mm case and bracelet in super-hard coated titanium, and Seiko's Caliber 5X63 movement. It sets its own time zone via GPS satellites, runs on light, keeps a perpetual calendar to 2100, and costs $2,700 in the United States.

  • Reference: HAB002 / HAB002J1 (Made in Japan)
  • Movement: Caliber 5X63 GPS Solar, ±15 seconds per month without a GPS signal
  • Power: About 6 months on a full charge; about 2 years in power-save mode
  • Case: 43.4mm diameter, 12.4mm thick, 50.0mm lug-to-lug, titanium with super-hard coating
  • Dial: Black, interlocking-triangle geometric pattern, LumiBrite hands and indexes
  • Bracelet: Titanium with quick-change system and easy-adjust three-fold clasp
  • Water resistance: 10 bar (100 meters), for everyday use
  • Price at Lexor Miami: $2,700, with a 3-year Seiko warranty and free shipping

Introduction: The Stealth Side of the New Astron

Some watches announce themselves from across the room. The Seiko Astron HAB002 is not one of them, and that is exactly its appeal. In a 2026 lineup that includes a blue flagship, a gold-accented sport model, and colorful limited editions in pink and green, the HAB002 is the quiet one: a black dial, gray titanium, and a silhouette that looks as precise as the technology inside it.

Look closer and the restraint turns out to be layered. The black dial is not flat; it is pressed with a geometric pattern of interlocking triangles that shifts from deep charcoal to near-graphite as light moves across it. The two sub-dials sit side by side across the center, a symmetrical arrangement that gives a complicated instrument a calm, composed face. Around it, an octagonal titanium bezel alternates brushed and polished surfaces, so every edge catches a thin line of light.

Inside is Seiko's Caliber 5X63, one of the most capable movements in modern watchmaking. It locates GPS satellites to set the correct time and time zone anywhere on Earth, keeps a second time zone, times events to 1/20 of a second, and handles every month length and leap year through 2100. It runs on light rather than routine battery changes.

This guide is for American buyers considering the HAB002. It covers the Astron legacy, every specification and function, how the HAB002 compares with its siblings, and why buying from an authorized dealer matters for a watch built on this much technology.

The Astron Legacy: Built on Firsts

Seiko's Beginnings in Tokyo

Seiko started in 1881, when Kintaro Hattori opened a watch and clock shop in Tokyo's Ginza district. Over the next century and a half it became one of the very few watchmakers that produce nearly every component in-house, from springs and dials to quartz oscillators, solar cells, and GPS receivers. That depth of manufacturing is what made the Astron possible.

The 1969 Astron and the Quartz Revolution

On Christmas Day 1969, Seiko released the first Astron, the world's first quartz wristwatch sold to the public. Its accuracy outclassed every mechanical watch of the day, and it helped trigger the Quartz Revolution that reshaped the global watch industry. Ever since, the Astron name has stood for the frontier of accurate timekeeping.

The 2012 GPS Solar Breakthrough

In 2012 Seiko brought the Astron back as the world's first GPS Solar watch: a wristwatch that could receive satellite signals, determine its own time zone, and run entirely on light. Doing that inside a watch required Seiko to engineer an ultra-low-power GPS receiver, since conventional chips use far too much energy. Each generation since has grown smaller, faster, and more refined.

The 2026 Redesign

In May 2026, Seiko introduced the Caliber 5X63 with four new GPS Solar Dual-Time Chronographs: the HAB001 (blue dial), the HAB002 (black dial), the HAB003 (black and gold on a silicone strap), and the 145th Anniversary limited edition HAB004. The new case is about a millimeter slimmer than the previous generation, the dial layout is cleaner, and a push-button quick-change system lets owners switch between bracelet and strap without tools. Seiko followed in July with the Crystal Green HAB005 and Crystal Pink HAB006 limited editions.

Front view of the Seiko Astron HAB002 showing the black interlocking-triangle dial, two horizontal sub-dials and octagonal titanium bezel
The HAB002's black dial is pressed with interlocking triangles that shift from charcoal to graphite in changing light.

Key Features of the Seiko Astron HAB002

GPS Time Zone Adjustment

Outdoors, press the reception button and the HAB002 acquires GPS satellites, determines your location, and sets the local time. The world-time database covers 38 cities, and reception works anywhere with an open view of the sky, at sea or on land.

Automatic Time Sync

Once your zone is set, the watch automatically re-syncs to GPS time whenever it detects bright outdoor light. Between syncs it holds accuracy to ±15 seconds per month.

Dual Time and Time Transfer

A sub-dial keeps home time while the main hands show local time. The time transfer function swaps them instantly, ideal for a quick switch when you land in a new city.

1/20-Second Chronograph

The chronograph measures up to 24 hours in 1/20-second steps.

Perpetual Calendar to 2100

Day and date displays handle month lengths and leap years automatically until February 28, 2100.

DST and In-Flight Mode

A daylight saving setting adjusts for seasonal clock changes, and in-flight mode disables GPS reception on board.

Power and Reception Indicators

The watch can display its charge level, the number of satellites acquired, and the result of its last reception.

Quick-Change System

A push-button release in the end links lets you remove the titanium bracelet and fit a compatible strap in seconds, then click it back in place. The HAB002 ships on its bracelet and gives you the option of adding a strap later.

Benefits: Why the HAB002 Makes Life Easier

You stop thinking about time zones. Land in Chicago, Lisbon, or Lima, step outside, press a button, and you are on local time with home time waiting on the sub-dial.

You stop setting your watch. GPS sync, the perpetual calendar, and DST control remove nearly every reason to touch the crown.

You stop worrying about batteries. Light keeps the HAB002 charged. A full charge lasts about six months, and power-save mode stretches that to roughly two years if the watch sits unworn. There are no routine battery changes.

You get accuracy no mechanical watch can match. ±15 seconds a month on its own, corrected to GPS time whenever it sees the sky.

You wear something light. Titanium is much lighter than steel, so a 43.4mm chronograph on a full bracelet stays comfortable all day, even in South Florida humidity.

You get the most versatile color in watchmaking. A black dial on gray titanium works with a tuxedo, a business suit, black jeans, or gym clothes. It never clashes and never looks out of place.

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Seiko Astron HAB002 Specifications

Specifications below are verified against Seiko's official US product page for reference HAB002J1.

Reference HAB002 (HAB002J1)
Collection Seiko Astron GPS Solar Dual-Time Chronograph (Seiko Luxe)
Caliber 5X63 GPS Solar
Jewels 14
Accuracy ±15 seconds per month without GPS reception, at 5°C–35°C
Power reserve Approx. 6 months fully charged; approx. 2 years in power-save mode
Case material Titanium with super-hard coating
Diameter 43.4mm
Thickness 12.4mm
Lug-to-lug 50.0mm
Bezel Two-piece octagonal titanium, brushed top and polished sides
Crystal Sapphire with Super-Clear coating
Dial Black (charcoal-toned), interlocking-triangle geometric pattern
Luminescence LumiBrite on hands and indexes
Bracelet Super-hard coated titanium, quick-change system
Clasp Easy-adjust three-fold clasp with push-button release
Caseback Screw-down
Water resistance 10 bar (100m), everyday use
Magnetic resistance 4,800 A/m
Warranty at Lexor Miami 3-year Seiko manufacturer's warranty
Price $2,700 USD

Complete Function List (Caliber 5X63)

  • GPS signal reception: time zone adjustment, automatic time adjustment, manual time adjustment
  • World time function (38 cities)
  • Dual-time function with time transfer between main dial and sub-dial
  • Chronograph up to 24 hours in 1/20-second increments
  • Perpetual calendar accurate to February 28, 2100
  • Day and date display
  • Power reserve indicator
  • Satellite acquisition status and reception result displays
  • DST (daylight saving time) function
  • In-flight mode
  • Power save and overcharge prevention
  • Automatic hand position alignment

Materials: Light, Hard, and Clear

Super-Hard Coated Titanium

Titanium weighs about 40% less than stainless steel, resists corrosion from salt and sweat, and is gentle on sensitive skin. Untreated, it scratches easily, so Seiko applies a proprietary super-hard coating to the HAB002's case and bracelet. That coating keeps the brushed and polished contrast crisp for years. On a black-dial watch, where scuffs would show clearly against the dark tones, that durability is especially valuable.

Sapphire with Super-Clear Coating

Sapphire crystal is nearly as hard as diamond, so keys, desks, and doorframes rarely leave a mark. Seiko's Super-Clear anti-reflective coating cuts glare, which matters on a black dial that would otherwise mirror its surroundings. The result is deep, inky contrast you can read even in bright sun.

LumiBrite

Black dials are often the most legible in the dark, and LumiBrite makes the most of that. The non-radioactive compound on the HAB002's hands and indexes charges fast and glows strongly against the dark background.

Screw-Down Caseback

The screw-down caseback seals the movement and supports 10 bar of water resistance, so swims, showers, and storms are no problem.

Seiko Astron HAB002 front view highlighting the super-hard coated titanium case, octagonal bezel and integrated titanium bracelet
Super-hard coated titanium keeps the HAB002 light and protects its finish from everyday scratches.

Design: Dark, Precise, and Composed

The Black Interlocking-Triangle Dial

The HAB002 shares its dial pattern with the blue HAB001, but black changes its character completely. Where the blue dial sparkles, the black one smolders. The pressed triangles create a subtle relief that appears and disappears with the light, so the dial looks nearly solid black indoors and reveals its texture in sunlight. It is a design that rewards a second look.

A Symmetrical Layout

Seiko arranged the sub-dials side by side on the horizontal axis. The result is a dial with poise and balance, much easier to read than older, busier Astron chronographs.

Octagonal Bezel and Multifaceted Case

The Astron's multifaceted case is finished with a two-piece octagonal titanium bezel, brushed on top and polished on the sides. Against the black dial, the polished edges stand out sharply, giving the HAB002 an architectural look that recalls the integrated-bracelet luxury sports watches collectors prize.

How It Wears

At 43.4mm wide, the HAB002 has presence, but its 12.4mm thickness and 50.0mm lug-to-lug length keep it comfortable. The bracelet flows directly from the case and curves down quickly, so it hugs the wrist. Black dials also tend to look slightly smaller on the wrist than lighter ones, which makes the HAB002 a good choice if you want the 5X63 package in the most understated proportions possible. Most wrists from about 6.5 inches up will find it comfortable.

Technology: Inside the Caliber 5X63

Solar Power

A solar cell under the dial converts light into electricity and stores it in a rechargeable cell. Seiko engineered the black dial to admit enough light to charge efficiently while keeping its dark, rich tone. Overcharge prevention protects the cell in strong sun.

GPS Reception

For a time zone adjustment, the watch acquires signals from four or more GPS satellites, calculates its position, and sets local time. It also performs time-only syncs automatically in bright outdoor light.

GPS vs. Radio-Controlled Timekeeping

Radio-controlled watches depend on ground transmitters with limited range; in the US, that is one station near Fort Collins, Colorado. GPS covers the planet, so the HAB002 can find accurate time over oceans and in regions no radio signal reaches.

Magnetic Resistance

Rated to 4,800 A/m, the 5X63 resists the magnetic fields from phones, laptops, tablets, and speakers that surround daily life.

Back view of the Seiko Astron HAB002 showing the screw-down titanium caseback and titanium bracelet clasp
A screw-down titanium caseback supports the HAB002's 10 bar water resistance.

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Living with the HAB002: Ownership and Care

Keeping It Charged

The simplest rule for any solar watch is to let it see light. Wearing the HAB002 during the day, with your sleeve not always covering the dial, is usually enough. If you leave it in a drawer for weeks, it will drop into power-save mode to protect its reserve; place it near a window for a few hours and it will wake up and resume normal operation. The power reserve indicator tells you exactly where you stand.

Getting the Best GPS Reception

GPS signals need an open view of the sky. Reception works best outdoors, away from tall buildings and heavy tree cover, with the dial facing up. Inside an airport terminal or on a covered balcony, step out into the open for a moment before pressing the button. Remember to switch on in-flight mode when boarding.

Cleaning the Titanium

Rinse the watch with fresh water after swimming in the ocean or a pool, especially in Florida, where salt and chlorine are part of daily life. Dry it with a soft cloth. The super-hard coating resists scratches, but avoid harsh chemicals and abrasive cleaners that could dull the finish.

Service and Warranty

Because the HAB002 has no mainspring to wear out and no routine battery changes, it needs far less maintenance than a mechanical watch. If anything does go wrong within three years, your Seiko manufacturer's warranty from an authorized dealer covers it. Keep your purchase documents from Lexor Miami with the watch's box.

Who Should Buy the Seiko Astron HAB002?

Executives and Professionals

A black dial on titanium is the most boardroom-friendly look in the Astron family. It pairs naturally with dark suits and white shirts and never draws attention away from the conversation.

Frequent International Travelers

If you fly often from MIA, JFK, IAH, or LAX, GPS time zone setting and a home-time sub-dial make the HAB002 a real travel tool.

Minimalists and Monochrome Dressers

If your wardrobe leans black, gray, and white, the HAB002 slots in perfectly. It complements rather than competes.

One-Watch Owners

Black is the safest choice if this will be your only serious watch. It suits formal events, office days, weekends, and vacations equally well.

Tech Enthusiasts

Few movements at any price combine GPS, solar power, a chronograph, dual time, and a perpetual calendar the way the 5X63 does.

Gift Buyers

For a promotion, retirement, wedding, or milestone birthday, a black-dial Astron is a gift almost anyone will wear, and one that will keep accurate time for decades.

Why Buy the Seiko Astron HAB002 at Lexor Miami?

Authorized Seiko Luxe Dealer

Lexor Miami is an authorized Seiko Luxe retailer listed on Seiko's official US store locator. Your HAB002 arrives brand new through official channels, in original packaging with full documentation.

3-Year Manufacturer's Warranty

Gray-market sellers often cannot offer a valid Seiko warranty. An authorized purchase guarantees the full 3-year coverage, which matters on a sophisticated GPS Solar movement.

Guaranteed Authentic and New

Every watch Lexor Miami sells is 100% authentic and brand new, whether you order online or buy in our showroom.

Free Shipping and 30-Day Returns

The HAB002 ships free within the 48 contiguous United States, with expedited options at checkout. Unopened, unused items can be returned within 30 days of delivery using a prepaid label.

See It in Our Miami Showroom

Lexor Miami is a family-run, women-owned business with more than 20 years in luxury retail and over 3,100 five-star Google reviews. Visit us at 2371 NW 20th St, Miami, FL 33142, Monday through Saturday, 10 AM to 6 PM, with free parking and on-site security. We can size the bracelet, demonstrate GPS setup, and show you the HAB002 next to the rest of our Seiko Astron collection. Learn more about Lexor Miami, read our overview of Seiko King and Astron watches in Miami, or explore luxury shopping in Miami.

Help Before and After Your Purchase

Reach our specialists by WhatsApp or phone at +1 (786) 333-1331, by email at info@lexormiami.com, or through our contact page. Shipping and payment details are in our store FAQs.

Buy from an Authorized Dealer

Seiko Astron HAB002 vs. Similar Models

The 2026 Astron 5X63 Family Compared

Model Dial Comes On Edition US Price
Astron HAB002 Black, interlocking-triangle pattern Titanium bracelet Regular production $2,700
Astron HAB001 Blue, interlocking-triangle pattern Titanium bracelet Regular production $2,700
Astron HAB003 Black with gold-tone accents Black silicone strap Regular production $2,600
Astron HAB004 (145th Anniversary) Light silver with blue accents Bracelet + blue/white silicone strap Limited, 2,000 pcs $2,900
Astron HAB005 Crystal Green, black sub-dials Bracelet + black silicone strap Limited, 1,200 pcs $2,900
Astron HAB006 Crystal Pink, black sub-dials Bracelet + black silicone strap Limited, 1,200 pcs $2,900

All six share the Caliber 5X63, the 43.4mm by 12.4mm titanium case, sapphire crystal, and quick-change system. They differ in dial, what is in the box, and rarity.

HAB002 vs. HAB001: Identical watches in every way except dial color. The blue HAB001 is brighter and more expressive; the black HAB002 is more formal, more understated, and more versatile with dark clothing. If you are unsure, our showroom team can show you both side by side.

HAB002 vs. HAB003: Both are dark-dial Astrons, but they take different directions. The HAB003 adds gold-tone accents and comes only on a black silicone strap for $100 less. The HAB002 keeps an all-monochrome look and includes the full titanium bracelet, which most buyers prefer for daily wear and dressier settings.

HAB002 vs. the limited editions: For $200 more, the HAB004, HAB005, and HAB006 add numbered casebacks, an extra silicone strap, and more expressive dials such as the Crystal Pink HAB006 and Crystal Green HAB005. Read our Seiko Astron HAB004 review for the anniversary model. If you want a collector's piece, those are the ones; if you want the most versatile everyday Astron, the HAB002 is the stronger value.

HAB002 vs. Other Seiko GPS Solar Watches

Lexor Miami also carries the Seiko 100th Anniversary Speedtimer Limited Edition SSH169 ($2,400), a GPS Solar chronograph with a racing-inspired look, plus the Astron GPS Solar SSJ014 ($2,300) and Astron SSJ023 ($2,400) for dressier tastes. The HAB002 stands out with the newer 5X63 caliber, the slimmer titanium case, and the quick-change system.

HAB002 vs. Rival Brands

Citizen's Satellite Wave GPS models are the closest competitors in solar GPS timekeeping, while Casio's premium lines sync by radio and Bluetooth. Few rivals offer GPS Solar inside a super-hard coated titanium case with an octagonal luxury-sports design and tool-free quick-change at this price. Next to Swiss mechanical chronographs costing several times more, the HAB002 is lighter, far more accurate, and almost maintenance-free, though it offers a different kind of appeal than traditional mechanical craftsmanship. If that heritage matters most to you, explore our King Seiko collection, including the black-dial King Seiko VANAC HKF005.

Side view of the Seiko Astron HAB002 showing the 12.4mm titanium case profile, crown and chronograph pushers
At 12.4mm thick, the 2026 Astron case is about a millimeter slimmer than the previous generation.

The Luxury Lifestyle of the Seiko Astron HAB002

The HAB002 is built for people who move fast and dress with intention. Imagine a Thursday in Miami: an early meeting in a Brickell high-rise, lunch in the Design District, then a red-eye to Madrid. The black dial reads as polished and serious under a charcoal suit; the titanium bracelet stays light through hours of travel; and when you land, one press outdoors switches the watch to local time while Miami time waits on the sub-dial.

On the weekend, the same watch goes to the beach, the marina, or a rooftop dinner in Wynwood. Its 10 bar water resistance handles a swim, its sapphire crystal shrugs off sand, and its black-and-gray palette works with everything from a linen shirt to a black tee. Add a strap through the quick-change system and it takes on a sportier look in seconds.

Black is the color of quiet confidence. The HAB002 suits someone who values substance over spectacle, appreciates Japanese engineering, and does not need a watch to shout. Complete the look with designer sunglasses from Lexor Miami's eyewear collections and you have an effortless, all-black travel uniform that works from South Beach to Tokyo.

Make the HAB002 Yours

Frequently Asked Questions About the Seiko Astron HAB002

How much does the Seiko Astron HAB002 cost?

The Seiko Astron HAB002 costs $2,700 in the United States. At Lexor Miami, that includes free shipping within the contiguous US and a 3-year Seiko manufacturer's warranty.

What color is the HAB002 dial?

The HAB002 has a black, charcoal-toned dial pressed with a geometric pattern of interlocking triangles. The texture becomes more visible in bright light.

What is the difference between the HAB001 and the HAB002?

Only the dial color. The HAB001 has a blue dial and the HAB002 has a black dial; price, movement, case, and bracelet are identical.

What is the difference between the HAB002 and the HAB003?

Both have dark dials, but the HAB003 adds gold-tone accents and comes on a black silicone strap for $2,600. The HAB002 is all-monochrome and comes on a titanium bracelet for $2,700.

What movement is inside the HAB002?

Seiko's Caliber 5X63 GPS Solar, introduced in 2026, accurate to ±15 seconds per month without GPS reception and self-correcting when it receives a signal.

Is the HAB002 a limited edition?

No. The HAB002 is a regular-production model. The limited editions in the family are the HAB004, HAB005, and HAB006.

Does the HAB002 need batteries?

No routine battery changes are needed. Light charges a rechargeable cell that runs about 6 months on a full charge, or about 2 years in power-save mode.

How does it set a new time zone?

Go outside with a clear view of the sky and press the reception button. The watch acquires GPS satellites, determines your position, and sets local time.

How big is the Seiko Astron HAB002?

The case is 43.4mm in diameter, 12.4mm thick, and 50.0mm lug-to-lug, and it wears comfortably on most wrists from about 6.5 inches up.

Is the HAB002 waterproof?

It is water resistant to 10 bar (100 meters), suitable for swimming and everyday water exposure, but not for scuba diving.

Does the HAB002 come with a strap?

It comes on a titanium bracelet. The quick-change system lets you fit a compatible strap later without tools.

Is Lexor Miami an authorized Seiko dealer?

Yes. Lexor Miami is an authorized Seiko Luxe dealer listed on Seiko's official US store locator, and every HAB002 includes the full 3-year manufacturer's warranty.

Can I see the HAB002 in person?

Yes. Visit our showroom at 2371 NW 20th St, Miami, FL 33142, Monday through Saturday, 10 AM to 6 PM. Call or message +1 (786) 333-1331 to confirm availability first.

Do you ship the HAB002 outside the US?

Lexor Miami ships only within the 48 contiguous United States, not to Alaska, Hawaii, Puerto Rico, APO/FPO addresses, or international destinations.

Ready to Own the Seiko Astron HAB002?

The HAB002 is the Astron in its most refined, understated form: black dial, titanium, GPS Solar, and ready for anywhere. Buy it from an authorized Seiko Luxe dealer with a 3-year warranty, free shipping, and a real showroom team.

Shop the Seiko Astron HAB002 Now – $2,700

Prefer to talk first? Message or call +1 (786) 333-1331 or email info@lexormiami.com.

Conclusion: Is the Seiko Astron HAB002 Worth It?

If you want the full 2026 Astron experience in its most versatile color, yes. The HAB002 delivers the Caliber 5X63, the slimmer super-hard coated titanium case, the clean symmetrical dial, and the quick-change bracelet at the family's lowest bracelet price, wrapped in a black dial that suits every setting. As a regular-production model, it is also easier to find and simpler to own than the limited editions.

Choose the blue HAB001 if you want more color, or one of the limited editions if you want a numbered collector's piece. Choose the HAB002 if you want the Astron that will look right with everything you own, every day, for decades. At $2,700, it is one of the most complete luxury travel watches available.

Explore the full Seiko Astron collection, the wider Seiko Luxe and Seiko watch ranges, our limited edition watches, or more buying guides on the Lexor Miami blog.

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