All Seiko lines › Power Design Project
Seiko Power Design Project chronograph, 43 mm (8T61)
4 versions of this watch are on Seiko's own sites right now, across 30 regions. Last checked Nov 13, 2026.
Estimated US price: About $525 to $540 from Seiko's US list price and its list prices in other countries, converted.
Retailers ask: no retailer listing matched yet.
Photos are Seiko's own, shown from Seiko's sites. Click a photo to jump to that version.
- Calibre
- 8T61
- Case diameter
- 43 mm
- Thickness
- 14.6 mm
- Lug to lug
- 44.1 mm
- Variants listed now
- 4
- Regions
- 30
Listed means the watch was on an official Seiko regional site or store at the last check. It does not mean it is in stock, and it does not tell us whether Seiko is still making it.
Versions listed now
Same case and movement in every row. What changes is the colour, the strap or bracelet, the finish and where Seiko sells it. Seiko's spec sheets don't state dial colour, so a colour appears only where Seiko's US store tags one.
| Photo | Reference | Colour | Strap / bracelet | Case | Edition | Listed in | Seiko list price | Buy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 | HHK001 Also coded HHK001P1 | Not published | Cow leather | Not stated | Edição Limitada collection 2Limitáltcollection 2 Limited Edition | 29 regions | 540 USD USA · Nov 13, 2026 | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (33 sites) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | HHK002 Also coded HHK002P1 | Not published | Cow leather | Not stated | Edição Limitada collection 2Limitáltcollection 2 Limited Edition | 29 regions | 540 USD USA · Nov 13, 2026 | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (33 sites) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | HHK001P | Not published | Cow leather Translated from Seiko's regional page 83 g | ステンレスケース Seiko's regional wording | コレクション2 限定モデル | 1 region Japan | 83,600 JPY Japan · Nov 13, 2026 about $525 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (1 site) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | HHK002P | Not published | Cow leather Translated from Seiko's regional page 83 g | ステンレスケース Seiko's regional wording | コレクション2 限定モデル | 1 region Japan | 83,600 JPY Japan · Nov 13, 2026 about $525 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (1 site) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where to buy
No retailer listing has been matched to a version on this line yet.
Estimated US prices use Seiko's US list price where there is one. Otherwise they are the middle of Seiko's list prices in other countries, converted at rates dated Nov 12, 2026 from ExchangeRate-API (free open endpoint). Those list prices include each country's sales tax, so a converted figure usually runs higher than a US price would. Retailer prices are asking prices on the date shown, not sold prices, and leave out shipping, tax and import charges.
The build
| Movement | Quartz | Seiko product page |
|---|---|---|
| Functions | Equipped with small seconds hand Chronograph up to 60 minutes in 1/5 second increments | Seiko product page |
| Power reserve / battery | Approx. 3 years | Seiko product page |
| Water resistance | Splash Resistant | Seiko product page |
| Crystal | Hardlex | Seiko product page |
| Lug width | 20 mm | Seiko product page |
| Seiko case codes | 8T61-00A0 | Seiko catalog data |
Why these share a page
Every version here is published by Seiko with calibre 8T61 and either the same Seiko case code or the same case size. 6 reference codes lead to this page.
Holden's Watch Desk is an independent catalog. It is not affiliated with, sponsored by or endorsed by Seiko. Seiko and its model names are trademarks of their owners, and the product photos are Seiko's, shown from Seiko's own sites to identify each watch. To report a mistake or ask for something to be removed, email holden@holdenswatchdesk.com.