SEIKO PROSPEX HBB003K1 2026 ASIA-PACIFIC LIMITED EDITION MEN WATCH
HBB003K1
- Low stock - 2 items left
- Backordered, shipping soon
- 15% off in cart
- Warranty 3 Years
A yellow dial is not something Seiko puts on a diver often, and the Seiko Prospex HBB003K1 is an Asia-Pacific exclusive built around one, limited to 2,500 pieces and supplied in a special box. The case is 41.7mm stainless steel, 12.3mm thick, on a matching steel bracelet.
Underneath the colour it is a proper diver. Seiko rates it at Diver's 200 metres — the designation reserved for watches built and tested for diving rather than merely resistant to water — with a screw-down crown, a one-way rotating bezel and Hardlex over the dial. Calibre 4R35 winds from the motion of your wrist, takes a hand wind, and carries a date.
At a Glance
- BrandSeiko
- CollectionProspex Diver's
- EditionLimited to 2,500 Pieces
- MovementCalibre 4R35 Automatic
- Case Size41.7mm
- Case Thickness12.3mm
- DialYellow
- GlassHardlex
- BezelOne-Way Rotating
- Water ResistanceDiver's 200 Metres
- BraceletStainless Steel
- Power ReserveApprox. 41 Hours
Why You'll Love It
- An Asia-Pacific exclusive of 2,500 pieces, supplied with a special box.
- Yellow is about as visible as a dial gets, which is the practical argument for it on a watch meant to be read underwater.
- The Diver's 200-metre designation is Seiko's own, and it brings the screw-down crown and one-way bezel that go with it.
- LumiBrite on the hands and hour markers takes over once the light stops reaching the dial.
- A date on the dial, hand winding available, and approximately 41 hours of reserve.
Key Features
- Diver's 200 metres — Seiko's designation for a watch built and tested for diving, with a screw-down crown and a one-way rotating bezel to match.
- Asia-Pacific limited edition of 2,500 pieces — supplied with a special box.
- Calibre 4R35 automatic movement — winding from wrist motion with a hand-wind option, built on 23 jewels and beating at 21,600 vibrations per hour, and holding roughly 41 hours once fully wound. Seiko states accuracy as +45 to −35 seconds per day, and only when the watch is worn on the wrist at temperatures between 5°C and 35°C.
- Yellow dial with LumiBrite on the hands and hour markers — behind a Hardlex crystal, with a date display.
- One-way rotating bezel — turning in a single direction only, so a knock can shorten an elapsed-time reading but never lengthen it.
Technical Specifications
| Model Number | HBB003K1 |
|---|---|
| Edition | Asia-Pacific Limited Edition, 2,500 Pieces |
| Case Material | Stainless Steel |
| Case Diameter | 41.7mm |
| Case Thickness | 12.3mm |
| Case Colour | Silver |
| Glass | Hardlex |
| Crown | Screw Down |
| Bezel | One-Way Rotating |
| Water Resistance | Diver's 200 Metres |
| Colour | Yellow |
|---|---|
| LumiBrite | Hands & Hour Markers |
| Hand Indicators | Hour, Minute, Seconds |
| Calendar | Date |
| Material | Stainless Steel |
|---|---|
| Colour | Silver |
| Calibre | Seiko 4R35 |
|---|---|
| Type | Automatic — Powered By The Movement Of The Wearer |
| Function | Analogue — 3 Hands |
| Jewels | 23 |
| Frequency | 21,600 vibrations per hour |
| Accuracy | +45 to −35 seconds per day (worn on the wrist, 5°C–35°C) |
| Hand Winding | Yes |
| Power Reserve | Approx. 41 Hours |
| Box | Special Box |
|---|
Frequently Asked Questions
How many were made?
Seiko publishes this as a 2,500-piece Asia-Pacific exclusive, supplied with a special box. Singapore takes a share of the regional allocation rather than the whole run, and no more are made once it is through.
Is it rated for diving?
Yes. Seiko gives it the Diver's 200-metre designation, which it reserves for watches built and tested for diving rather than ones that simply resist water, and that covers swimming, snorkelling and diving with an air cylinder. Screw the crown fully home before going in, rinse the watch in fresh water afterwards, and have the case seals checked at service intervals, since the gaskets hold the rating over time.
Is there a time I should not set the date?
Yes — avoid 9:00 pm to 1:00 am. Seiko's calibre 4R35 manual states that setting the date in those hours may damage the movement. If you need to change it then, wind the hands past 1:00 am first, set the date, and bring the time back.
How do I time something with the bezel?
Turn the bezel so its zero marker lines up with the minute hand when you start. The minutes elapsed can then be read straight off the bezel. It only turns one way, which means an accidental knock can make the elapsed time read longer than it really is but never shorter — the safety logic behind a diver's bezel.
Why does the crown screw down?
Because it seals the opening the crown passes through, rather than just pushing closed. It has to be screwed fully home before the watch goes near water — a crown left unscrewed is the most common way water reaches a movement.
What if I leave it off for a few days?
It will stop. A full wind holds approximately 41 hours, so a watch put down on Friday evening is usually stopped by Sunday. Wind it by hand, reset the time and date, and carry on — that is normal for a mechanical watch and harms nothing.
Can the bracelet be sized?
Yes. Links can be added or removed to fit the stainless steel bracelet to your wrist. City Chain offers complimentary bracelet sizing at any outlet — bring your warranty book along for the service.
Why Buy from City Chain Singapore
- Authorised Retailer 100% genuine Seiko product
- 3-Year Warranty Covered on every purchase
- Free Shipping All orders within Singapore
- Bracelet Adjustment Complimentary sizing in store
Caliber Number: 4R35
Movement Type: Automatic with manual winding
Power reserve: Approx. 41 hours
Jewels: 23
Stop second hand function
Date display
Case Material: Stainless steel
Case Thickness: 12.3mm
Case Diameter: 41.7mm
Lug-to-lug: 49.5mm
Crystal: Hardlex
LumiBrite on hands, index(es) and bezel
Three-fold clasp with secure lock , push button release with extender
Distance between lugs: 20mm
Water Resistance: 200m / 660ft diver's
Magnetic Resistance: 4,800 A/m
Weight: 170.0g
LIMITED EDITION on the case back
Serial number engraved on the case back
Unidirectional rotating bezel
Screw-down crown
Screw case back
Delivery within Singapore | Order by 11AM
(Checkout options may vary depending on minimum order requirements)
• Free Standard Delivery (3 business days)
• Free Next Day Delivery
• Express Delivery at $30 (order by 2PM)
• Click & Collect (ready in 2–3 business days)
Weekend & Public Holiday Orders
Orders placed during this time will be processed on the next business day.
For online purchase, you can have bracelet or leather strap adjustments done at any City Chain store. Please bring along your warranty book for the service.
