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Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Seiko’s new colorful Prospex Speedtimer Solar Chronographs are the HBJ001, HBJ002, HBJ003 and HBJ004. “Seitona” is an informal nickname used in launch coverage, not the official product name. Seiko’s UK store lists all four at £690, while the reported rollout also includes the US, Europe and India; those broader availability and regional price details were reported by Notebookcheck on October 6, 2026, and should be checked against live local listings.
Which Seiko HBJ Speedtimer is green or yellow?
Seiko’s official UK store maps the four references to these dial colors and lists each at £690:
| Reference | Listed color | UK store price |
|---|---|---|
| HBJ001 | Silver tone | £690 |
| HBJ002 | Grey | £690 |
| HBJ003 | Green | £690 |
| HBJ004 | Yellow | £690 |
The lineup and prices appear in the Seiko Official UK Online Store’s solar listings; the store also has an individual HBJ004 yellow listing. Seiko’s US product page lists HBJ002 at USD 775. That is a US price for that reference, not a confirmed price for every model in every market.
Where are the new Speedtimers on sale, and how much do they cost?
Notebookcheck reported on October 6, 2026, that the four watches were going on sale in the US, UK, Europe and India, with reported prices of USD 775, £690, €790 and ₹85,000, respectively. These are launch figures reported by Notebookcheck, not independently confirmed official listings for every region. Seiko’s reviewed official pages directly confirm the £690 UK lineup and USD 775 price for US HBJ002; check a local Seiko or authorized retailer listing for current availability and pricing. The rollout and reported regional figures are covered in Notebookcheck’s October 6, 2026 report.
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- Tachymeter Feature: Measure Speed
- Secure Case Back: Screw Type
What is different about the new Seitona Speedtimer?
The main difference across these four references is the dial color. Seiko’s official US HBJ002 page and Singapore HBJ003 page describe the same core solar chronograph platform, so the collection is a color expansion rather than four different movement or case configurations. The “Seitona” label is shorthand in some coverage; Seiko identifies the watches as Prospex Speedtimer Solar Chronographs.
Solar movement and timing functions
Seiko specifies its V192 solar movement, approximately six months of operation when fully charged, and accuracy of ±15 seconds per month. The chronograph measures up to 60 minutes in 1/5-second increments. Other listed functions include a 24-hour hand, small seconds, date display, power-reserve indicator and overcharge prevention. These are manufacturer specifications, not independent test results. See the official US HBJ002 specifications and official Singapore HBJ003 page.
Rank #2
![SEIKO SBDL095 [PROSPEX SPEEDTIMER Solar Chronograph] Men's Watch Shipped from Japan Released in Nov 2022 white](https://m.media-amazon.com/images/I/41dWo45BQgL._SL160_.jpg)
- SEIKO Prospex
- Item shape: Round
- Power source type: Solar Powered
- Seiko Prospex
Case, crystal and water resistance
The stated stainless-steel case measures 41.4 mm in diameter, 13.0 mm thick and 45.9 mm from lug to lug. Seiko lists a curved sapphire crystal with an inner anti-reflective coating, LumiBrite on the hands and indexes, a three-fold push-button clasp, 10 bar water resistance and 4,800 A/m magnetic resistance. The 10 bar figure is the manufacturer’s rating; it does not by itself establish a particular activity warranty or whether operating the chronograph underwater is appropriate.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How the collection fits the Speedtimer name
Seiko’s modern solar Speedtimer line carries forward design elements from the series, whose introduction in 1969 the company describes as an important chronograph milestone. That context connects the HBJ watches to the Speedtimer family, but does not mean these new colorways reproduce a specific historical reference. Seiko’s October 11, 2022 heritage release and its solar Speedtimer collection page provide the background.
Quick Recap
Best Value
- PROSPEX
- Clasp type: Push Button Deployment Clasp
- Item shape: Round
- Power source type: Solar Powered
Rank #4
![SEIKO SBDL097 [PROSPEX SPEEDTIMER Solar Chronograph] Men's Watch Shipped from Japan Released in Nov 2022](https://m.media-amazon.com/images/I/51L65FBObTL._SL160_.jpg)
- Individually boxed, with warranty card included
- Solar
- Runs for approximately 6 months on a full charge
- Includes tachymeter
- Charging level display function
Rank #3
![SEIKO SBDL085 [PROSPEX SPEEDTIMER Solar Chronograph] Mens Watch Shipped from Japan](https://m.media-amazon.com/images/I/41qNCHkLgqL._SL160_.jpg)
- Item shape: Round
- Power source type: Solar Powered
- Clasp type: Push Button Deployment Clasp
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
