All Seiko lines › Other Seiko ranges › Quartz chronograph
Seiko quartz chronograph, 41.5 mm (8T63)
4 versions of this watch are on Seiko's own sites right now, across 21 regions. Last checked Nov 13, 2026.
Estimated US price: $265 to $315 Seiko US list price.
Retailers ask: $265 to $315 across 2 listings at 1 seller, checked Nov 13, 2026. See the sellers
Silver
Blue
Black
Black
Photos are Seiko's own, shown from Seiko's sites. Click a photo to jump to that version.
- Calibre
- 8T63
- Case diameter
- 41.5 mm
- Thickness
- 12.1 mm
- Lug to lug
- 46.5 mm
- Variants listed now
- 4
- Regions
- 21
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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 | SSB425 Also coded SSB425P1 | Silver Seiko USA store tag | Not stated Clasp: Three-fold clasp with push button release 133 g | Not stated | Regular | 20 regions | 265 USD USA · Nov 13, 2026 | Not seen in stock 1 seller checked | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (23 sites) and its list prices
Buying options (1)Offers seen available at the last check come first, then by item price. Shipping, taxes and import charges are not included. Commission never affects the order.
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 | SSB427 Also coded SSB427P1 | Blue Seiko USA store tag | Not stated Clasp: Three-fold clasp with push button release 133 g | Not stated | Regular | 20 regions | 265 USD USA · Nov 13, 2026 | From 265.00 USD Seiko USA · 1 seller checked | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (23 sites) and its list prices
Buying options (1)Offers seen available at the last check come first, then by item price. Shipping, taxes and import charges are not included. Commission never affects the order.
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 | SSB429 Also coded SSB429P1 | Black Seiko USA store tag | Not stated Clasp: Three-fold clasp with push button release 133 g | Not stated | Regular | 19 regions | 265 USD USA · Nov 13, 2026 | Not seen in stock 1 seller checked | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (22 sites) and its list prices
Buying options (1)Offers seen available at the last check come first, then by item price. Shipping, taxes and import charges are not included. Commission never affects the order.
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 | SSB430 Also coded SSB430P1 | Black Seiko USA store tag | Not stated 133 g | Not stated | Regular | 17 regions | 315 USD USA · Nov 13, 2026 | From 315.00 USD Seiko USA · 1 seller checked | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (20 sites) and its list prices
Buying options (1)Offers seen available at the last check come first, then by item price. Shipping, taxes and import charges are not included. Commission never affects the order.
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Where to buy
Asking prices for new watches at the last check. Each was in stock at that check, but stock moves, and shipping, tax and import charges are not included. Each reference links to the seller's page.
| Seller | Version | Asking price | Checked |
|---|---|---|---|
| Seiko USA | SSB427 | 265.00 USD | Nov 13, 2026 |
| Seiko USA | SSB430 | 315.00 USD | Nov 13, 2026 |
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 | 24-hour hand Equipped with small seconds hand Chronograph up to 60 minutes in 1/5 second increments Date display | Seiko product page |
| Power reserve / battery | Approx. 3 years | Seiko product page |
| Water resistance | 10 bar | Seiko product page |
| Crystal | Hardlex | Seiko product page |
| Lug width | 22 mm | Seiko product page |
| Seiko case codes | 8T63-00W0 | Seiko catalog data |
Why these share a page
Every version here is published by Seiko with calibre 8T63 and either the same Seiko case code or the same case size. 8 reference codes lead to this page.
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