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The Seiko Prospex Speedtimer HBD001 is a 42mm automatic mechanical chronograph with a sky-blue dial, Seiko's in-house Caliber 8R48 movement, a sapphire crystal, 100m water resistance, and a stainless steel bracelet. It is in stock at Lexor Miami, an authorized Seiko dealer, for $2,500 with a 3-year Seiko warranty, free shipping, and free returns.

The Seiko Prospex Speedtimer HBD001: a modern mechanical chronograph inspired by Seiko's 1972 Speedtimer.
Shop the Seiko HBD001 – $2,500
Most people who search for the Seiko Prospex Speedtimer HBD001 already know two things. They want a mechanical chronograph, not a battery-powered one, and they want a watch that means something. The HBD001 checks both boxes. It is a self-winding chronograph built entirely by Seiko, and its design comes straight from one of the most admired Seiko chronographs of the early 1970s.
Released in September 2026, during the year Seiko marks 145 years since its founding, the HBD001 joins the Prospex Speedtimer family as a permanent model rather than a numbered limited edition. That matters for American buyers. You can buy it new, at the official retail price, from an authorized dealer, with full factory warranty coverage. No waiting list, no inflated resale pricing, and no uncertainty about where the watch came from.
This page is written for one purpose: to help you decide whether the HBD001 is the right watch for you, and if it is, to make buying it simple and safe. You will find the brand background, the complete official specifications, an honest look at the movement, practical guidance on size and daily wear, a comparison with similar models, and answers to the questions our watch specialists hear most often. If you prefer a long-form editorial review, our team also published a detailed Seiko HBD001 review with the HBD001 vs HBD002 comparison on the Lexor Miami blog.
To understand the HBD001, it helps to understand the company that made it. Seiko is one of the very few watchmakers in the world that designs and builds nearly everything in-house, from hairsprings and mainsprings to cases, dials, and complete movements. That vertical integration is the reason a watch like the HBD001 can offer a column-wheel chronograph at a price far below most Swiss equivalents.
Kintaro Hattori opened a small watch and jewelry shop in Tokyo in 1881. Within a decade he had founded the Seikosha factory to produce clocks, and in 1913 the company made the Laurel, Japan's first wristwatch. The first watch to carry the Seiko name on its dial followed in 1924, which is why Seiko celebrated a brand centennial in 2024.
When Tokyo hosted the 1964 Olympic Games, Seiko served as the official timekeeper and introduced Japan's first wrist chronograph. Five years later, in 1969, Seiko released one of the world's first automatic chronographs, powered by the Caliber 6139 and sold under the Speedtimer name in Japan. In that same year Seiko also launched the Astron, the world's first quartz wristwatch. Few brands have shaped modern timekeeping as directly.
The Speedtimer line evolved quickly in the early 1970s. A 1972 Speedtimer chronograph, with its flowing case, strong dial contrast, and motorsport attitude, became one of the most collected vintage Seiko chronographs ever made. Seiko describes the HBD001 as capturing the character of that celebrated 1972 design and bringing the thrill of touring to the wrist.
Prospex, short for "professional specifications," is Seiko's family of purpose-built sports watches for the sea, the land, and the sky. Seiko brought the Speedtimer name back inside Prospex in 2021 with both solar and mechanical chronographs. The HBD001 is the newest chapter: a modern mechanical Speedtimer built with Seiko's latest case and bracelet manufacturing techniques. You can explore the wider family in the Seiko Prospex collection at Lexor Miami.

Three dark sub-dials stand out sharply against the textured sky-blue dial.
Features are what a watch has. Benefits are what those features mean on your wrist every day. Here is how the HBD001's engineering translates into real ownership value.
The Caliber 8R48 winds itself from the natural motion of your wrist. Wear it during the day and it keeps running. If it stops after a weekend in a drawer, a few turns of the crown bring it back to life. There is no battery to replace and no electronic module to fail.
Seiko's 8R-family chronographs use a column wheel and a vertical clutch, two features watch enthusiasts associate with high-grade chronographs. The practical result is a crisp, consistent feel when you press the pushers and a chronograph hand that starts cleanly instead of jumping. It is the kind of mechanical detail you notice every single time you use it.
Between the super-hard coated case and the sapphire crystal, the HBD001 is built to resist the small scuffs that accumulate on a daily watch: desk edges, car doors, keys, and gym bags. That protects both its appearance and its long-term value.
Seiko gave each sub-dial a different finish and added sky-blue accents specifically to improve legibility. The dark counters on the light dial create strong contrast, so you can read elapsed time in a fraction of a second, even in bright Florida sunlight.
With 100 meters of water resistance, a screw case back, and magnetic protection, the HBD001 does not need to be babied. Rain, a pool day, a long flight, or a week of work travel are all part of normal use.
Owning the HBD001 means wearing a modern interpretation of a 1972 design from the company that helped introduce the automatic chronograph in 1969. That story is a large part of why people fall in love with mechanical watches.
The following specifications are verified against Seiko's official product page for reference HBD001J1.
| Specification | Seiko Prospex Speedtimer HBD001 |
|---|---|
| Brand / Collection | Seiko / Prospex Speedtimer |
| Reference | HBD001 (HBD001J1) |
| Release | September 2026 |
| Movement | Caliber 8R48, automatic with manual winding |
| Jewels | 34 |
| Accuracy | +25 to -15 seconds per day |
| Power reserve | Approximately 45 hours |
| Functions | Chronograph (30 minutes and 12 hours), date display, stop-second function, tachymeter |
| Case material | Stainless steel with super-hard coating |
| Case diameter | 42.0mm |
| Case thickness | 14.6mm |
| Lug-to-lug | 49.5mm |
| Lug width | 20mm |
| Crystal | Dual-curved sapphire, anti-reflective coating on inner surface |
| Luminous material | LumiBrite on hands and indexes |
| Case back | Screw case back |
| Water resistance | 10 bar (100 meters) |
| Magnetic resistance | 4,800 A/m |
| Bracelet | Stainless steel |
| Clasp | Three-fold clasp with push-button release |
| Warranty at Lexor Miami | 3-year Seiko manufacturer warranty |
| Price at Lexor Miami | $2,500 |
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The 42mm case uses super-hard coated stainless steel with vertical brushing.
The case is stainless steel finished with Seiko's super-hard coating, a surface treatment that significantly increases resistance to everyday scratching compared with standard uncoated steel. For a sports chronograph that will be worn daily, this is one of the most practical upgrades you can have. The coating does not change the color or character of the steel, so the watch keeps a natural, brushed look.
Sapphire is second only to diamond in hardness among common watch materials, which makes it highly scratch-resistant. Seiko curved the HBD001's crystal on both the outer and inner surfaces. This gives the watch a gently domed, vintage-inspired profile while keeping distortion low. The anti-reflective coating is applied to the inside surface, where it reduces glare without being exposed to wear.
LumiBrite is Seiko's own luminous compound. It charges from light and glows in the dark, so you can read the hands and indexes in a dim restaurant, a theater, or a car at night.
The multi-link steel bracelet was designed specifically for comfort, and it closes with a three-fold clasp released by push buttons. Steel is the ideal material for warm, humid climates because it does not absorb sweat or deteriorate in the way leather can.
Seiko's design goal for the HBD001 was clear: keep the character of the 1972 Speedtimer while rebuilding the watch with modern techniques. The result looks vintage at first glance and feels thoroughly contemporary on the wrist.
The main dial is a light sky blue with a fine texture that shifts as light moves across it. Seiko says the blue accents are meant to evoke the scenery passing by on a road trip. Against that background sit three dark sub-dials for the 30-minute counter, the 12-hour counter, and the running seconds. Each sub-dial has its own finish, which helps your eye separate them instantly.
The case has a vertical brushed finish across its main surfaces, giving it a precise, tool-like appearance. The pushers and crown are proportioned for easy operation. Turn the watch over and you find a solid screw case back.
Seiko created a new case and bracelet for this model, and the bracelet flows naturally from the case for a balanced, cohesive look. The 20mm lug width means you can also fit a leather, rubber, or fabric strap if you want to change the style for the weekend.

Each sub-dial has its own finish for faster, clearer chronograph reading.
The single most important reason to choose the HBD001 over a solar Speedtimer is the movement. The Caliber 8R48 is an in-house automatic chronograph, and it belongs to Seiko's 8R family of mechanical chronograph calibers.
A column wheel is a small, castle-shaped component that coordinates the start, stop, and reset functions of a chronograph. It is more complex to manufacture than the simpler cam-and-lever system found in many mass-produced chronographs, and it is traditionally associated with high-end watchmaking because it delivers a precise, consistent feel at the pushers.
The vertical clutch connects the running movement to the chronograph through stacked friction discs instead of side-by-side gears. When you press start, the chronograph seconds hand begins moving smoothly, without the small jump that can happen with a horizontal clutch. A vertical clutch also lets the chronograph run for long periods without unnecessary wear.
A rotor winds the mainspring as you move. You can also wind the watch by hand through the crown, which is useful when starting it after a few days off the wrist.
Seiko rates the 8R48 at +25 to -15 seconds per day with a power reserve of about 45 hours. These are realistic figures for a mechanical chronograph, which uses more energy than a simple three-hand watch. If absolute precision is your top priority, a solar quartz chronograph will always be more accurate. If you value craftsmanship and mechanical character, the 8R48 delivers exactly what you are paying for. Real-world accuracy depends on how you wear and store the watch, and many owners see results well inside the official tolerance.
Start the chronograph as you pass a mile marker and stop it at the next one. The number the central hand points to on the tachymeter scale is your average speed in miles per hour. If a mile takes 60 seconds, you were traveling at 60 mph; if it takes 45 seconds, you were going 80 mph.
Get the Caliber 8R48 Chronograph

At 42mm with a 49.5mm lug-to-lug, the HBD001 wears like a classic modern sports chronograph.
The HBD001 is not for everyone, and that is part of its appeal. Here is who will get the most out of it.
If you need a watch that slips under a tight dress-shirt cuff, or if you want the longest possible power reserve, the HBD001 may not be your ideal choice. A slim dress watch from the Seiko Presage collection or a three-hand Speedtimer will suit those priorities better.
With a new release, where you buy is as important as what you buy. Unauthorized online sellers may advertise attractive prices, but they often cannot provide the official Seiko warranty, and you cannot be sure the watch is new, complete, and untouched. Here is what you get at Lexor Miami.
Questions about shipping, payment, or returns? Our customer FAQ page covers the details.
Buy From an Authorized Seiko Dealer
The HBD001 is one of several Speedtimer and Prospex options at Lexor Miami. This comparison focuses on the decision most buyers face: mechanical chronograph, three-hand mechanical, or a limited edition.
| Model | Type | Movement | Best for | Price at Lexor Miami |
|---|---|---|---|---|
| Speedtimer HBD001 | Mechanical chronograph, steel bracelet | Caliber 8R48 automatic, about 45h | A permanent-collection mechanical chronograph at official retail | $2,500 |
| Speedtimer SRQ049 100th Anniversary LE | Limited-edition mechanical chronograph | Seiko 8R-family automatic chronograph | Collectors who want a numbered limited edition | $2,700 |
| Speedtimer HBC003 | Three-hand mechanical, light blue dial | Seiko automatic | The Speedtimer look in a smaller, thinner, lower-priced watch | $995 |
| Speedtimer Mechanical SPB515 | Mechanical Speedtimer, black dial with orange accents | Seiko automatic | A darker, sportier Speedtimer under $1,000 | $995 |
Both are 8R-family mechanical chronographs. The SRQ049 is a limited edition created for Seiko's brand centennial, which appeals to collectors who value numbered production. The HBD001 is the newer design, based on the 1972 Speedtimer, with the latest case and bracelet construction, at a lower price.
The HBC003 shares the Speedtimer design language but is a three-hand watch without a chronograph. Choose it if you want a smaller, slimmer case and a lower price. Choose the HBD001 if the chronograph is the reason you want a Speedtimer.
The HBD002 is the HBD001's sister reference, sharing the same case and Caliber 8R48 but with a different dial and a leather strap. For a full side-by-side, see our HBD001 vs HBD002 guide.
Solar Speedtimers offer the same racing look with quartz accuracy and no winding, for far less money; our Seiko SSC927 Speedtimer solar chronograph article is a good starting point. Swiss automatic chronographs in a similar price range, such as those in our Tissot and Hamilton collections, often use cam-actuated movements with longer power reserves. The HBD001's advantage is its in-house column-wheel and vertical-clutch architecture combined with a design story that is uniquely Seiko.

Screw case back and three-fold push-button clasp: built for everyday confidence.
Luxury today is less about logos and more about knowing exactly what you are wearing and why. The HBD001 fits that idea perfectly. It is a watch that rewards curiosity: the feel of the pushers, the sweep of the chronograph hand, the story of 1972, the way the dial changes color from a sunlit café to an evening dinner.
In Miami, a watch has to handle heat, humidity, salt air, and sun. The HBD001's steel bracelet, sapphire crystal, and 100-meter water resistance make it a natural choice for a boat day in Biscayne Bay, lunch in Coral Gables, or an evening in Brickell. Rinse the bracelet with fresh water after the beach or pool, never press the pushers underwater, and keep the watch away from strong magnets. Like any mechanical chronograph, plan on periodic professional service to keep it running at its best.
If you enjoy discovering the city's luxury scene, our guide to luxury shopping in Miami and our list of brands available in Miami are worth a look.
Add the HBD001 to Your Collection
The official U.S. retail price is $2,500. Lexor Miami, an authorized Seiko dealer, sells it at that price with a 3-year Seiko warranty, free shipping within the 48 contiguous states, and free returns.
No. The HBD001 is part of Seiko's regular Prospex Speedtimer collection, released in September 2026. It is not individually numbered, so you can buy it new at retail from an authorized dealer.
It uses Seiko's in-house Caliber 8R48, an automatic mechanical chronograph with manual winding, 34 jewels, about 45 hours of power reserve, and accuracy of +25 to -15 seconds per day.
It is water resistant to 10 bar (100 meters), which is suitable for swimming and everyday water exposure. It is not a dive watch, and you should never operate the chronograph pushers underwater.
The case is 42.0mm in diameter, 14.6mm thick, and 49.5mm lug to lug, with a 20mm lug width. It fits most wrists of 6.5 inches and above comfortably.
No. It is a mechanical watch powered by a mainspring that winds automatically as you wear it, or manually by turning the crown.
A dual-curved sapphire crystal with an anti-reflective coating on the inner surface, offering high scratch resistance and clear legibility.
Watches should be bought primarily to be worn and enjoyed rather than as financial investments. That said, the HBD001 combines an in-house mechanical chronograph, a well-known heritage design, and a strong brand, which are the qualities that tend to help a watch hold its appeal over time.
Yes. The 20mm lug width accepts a wide range of leather, rubber, and fabric straps.
At Lexor Miami, 2371 NW 20th St, Miami, FL 33142, open Monday through Saturday from 10 AM to 6 PM. You can also order online or by phone and WhatsApp at +1 786-333-1331.
Lexor Miami ships to addresses in the 48 contiguous United States. Shipping is free on the HBD001. Orders are not shipped to Alaska, Hawaii, Puerto Rico, APO/FPO addresses, or international destinations.
A 3-year Seiko manufacturer warranty, valid when the watch is purchased from an authorized retailer such as Lexor Miami.

Seiko Prospex Speedtimer HBD001 – $2,500 at Lexor Miami.
Seiko Prospex Speedtimer HBD001 – $2,500
42mm super-hard coated steel case, sky-blue dial, in-house Caliber 8R48 automatic chronograph, sapphire crystal, 100m water resistance, stainless steel bracelet. In stock, 3-year Seiko warranty, free shipping and free returns.
Prefer to talk first? Call or WhatsApp +1 786-333-1331 and a Lexor Miami watch specialist will answer your questions about sizing, availability, and delivery.
The Seiko Prospex Speedtimer HBD001 brings together the things that make Seiko special: a design rooted in its 1972 Speedtimer, an in-house mechanical chronograph with a column wheel and vertical clutch, and practical engineering that lets you wear it every day. It is not the thinnest or the most accurate chronograph available, and we think it is important to say so. But for the buyer who wants genuine mechanical character, a real story, and Japanese build quality at a fair U.S. price, it is one of the most compelling new chronographs of 2026.
Buying from Lexor Miami means you receive a brand-new, authentic watch with the full 3-year Seiko warranty, free shipping, free returns, and the support of a team that has served watch buyers for more than two decades. Explore more in our Seiko watches collection, browse new arrivals, or read more guides on the Lexor Miami blog, including our Seiko Prospex Alpinist, Diver and GMT buying guide.
Shop the Seiko Prospex Speedtimer HBD001
Written by the Lexor Miami watch team, an authorized Seiko dealer in Miami with more than 20 years in luxury retail. Specifications verified against Seiko's official HBD001J1 product page. Price and availability current as of October 2026.