All Seiko lines › Diamond Collection

Seiko Diamond Collection, 27.6 mm (V137)

3 versions of this watch are on Seiko's own sites right now, across 3 regions. Last checked Nov 13, 2026.

Estimated US price: About $495 to $590 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
V137
Case diameter
27.6 mm
Thickness
8 mm
Lug to lug
33.2 mm
Variants listed now
3
Regions
3

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.

PhotoReferenceColourStrap / braceletCaseEditionListed inSeiko list priceBuy
Seiko SUT426SUT426
Also coded SUT426P1
Not publishedNot stated
Clasp: Three-fold clasp with push button release
59 g
Stainless steelRegular2 regions
Australia, New Zealand
875 AUD
Australia · Nov 13, 2026
about $590 in US dollars
No seller matched yet
Where Seiko lists it (2 sites) and its list prices
Seiko siteListed asSeiko list priceChecked
AustraliaSUT426875 AUD
New ZealandSUT4261,050 NZD
Buying options (0)

No seller offer has been matched to this exact variant yet.

Seiko SUT428SUT428
Also coded SUT428P1
Not publishedNot stated
Clasp: Three-fold clasp with push button release
59 g
Stainless steelRegular2 regions
Australia, New Zealand
875 AUD
Australia · Nov 13, 2026
about $590 in US dollars
No seller matched yet
Where Seiko lists it (2 sites) and its list prices
Seiko siteListed asSeiko list priceChecked
AustraliaSUT428875 AUD
New ZealandSUT4281,050 NZD
Buying options (0)

No seller offer has been matched to this exact variant yet.

Seiko SUT068SUT068
Also coded SUT068P9
Mother of Pearl
Seiko USA store tag
Not stated
Clasp: Three-fold clasp with push button release
Stainless steelRegular1 region
USA
495 USD
USA · Nov 13, 2026
Not seen in stock
1 seller checked
Where Seiko lists it (2 sites) and its list prices
Seiko siteListed asSeiko list priceChecked
USASUT068495 USD
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.

Seller / sold referenceItem priceStock at last checkWarrantyChecked
Seiko USA

Seller title: SUT068
495.00 USDObserved unavailable at the recorded check; live stock unverifiedmanufacturer; confirm exact checkout terms

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

MovementSolarSeiko product page
FunctionsOvercharge prevention function Date displaySeiko product page
Power reserve / batteryOperating for approx. 6 months (when fully charged)Seiko product page
Water resistance5 barSeiko product page
CrystalSapphire crystal
Some variants are published as: Hardlex
Seiko product page
Lug width6 mmSeiko product page
Seiko case codesV137-0AD0Seiko catalog data

Why these share a page

Every version here is published by Seiko with calibre V137 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.