All Seiko lines › Seiko 5 Sports › SKX series
“Gene Kranz”
Seiko 5 Sports SKX series, 38.2 mm (4R36)
Collector nickname. Where the name comes from
2 versions of this watch are on Seiko's own sites right now, across 23 regions. Last checked Nov 13, 2026.
Estimated US price: About $440 to $535 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
- 4R36
- Case diameter
- 38.2 mm
- Thickness
- 12.3 mm
- Lug to lug
- 44.7 mm
- Variants listed now
- 2
- Regions
- 23
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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 | SRPL93 Also coded SRPL93K1 | Not published | Not stated Clasp: Three-fold clasp with push button release 137 g | Stainless steel | Heritage Design Re-creation Limited EditionHeritage Tasarım Limitli Üretim ModeliLimitáltRecriação Histórica de Edição Limitada | 23 regions | 440 USD USA · Nov 13, 2026 | Not seen in stock 1 seller checked | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (26 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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 | SRPL91 Also coded SRPL91K1 | Not published | Not stated Clasp: Three-fold clasp with push button release 137 g | Stainless steel | Heritage Design Re-creation Limited EditionHeritage Tasarım Limitli Üretim ModeliLimitáltRecriação Histórica de Edição Limitada | 22 regions | 460 EUR France · Nov 13, 2026 about $535 in US dollars | Not seen in stock 1 seller checked | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (25 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
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 | Automatic with manual winding | Seiko product page |
|---|---|---|
| Functions | Stop second hand function Day/Date display | Seiko product page |
| Power reserve / battery | Approx. 41 hours | Seiko product page |
| Water resistance | 10 bar | Seiko product page |
| Crystal | Dual-curved Hardlex | Seiko product page |
| Lug width | 20 mm | Seiko product page |
| Seiko case codes | 4R36-17S0, 4R36-18F0 | Seiko catalog data |
Why these share a page
Every version here is published by Seiko with calibre 4R36 and either the same Seiko case code or the same case size. 4 reference codes lead to this page.
What people call it
A name is shown only where a source ties it to a reference on this page. Collector nicknames are not Seiko's names unless the row says so.
| “Gene Kranz” | Collector nickname. Source names SRPL91, SRPL93. “The Seiko 5 SRPL91 And SRPL93 — Re-Editions Of The “Gene Kranz” 6119-8460 Sports Diver” The nickname belongs to the 1960s 6119-8460. These are Seiko's re-editions of it, and the source uses the name in its headline. | Fratello read 2026-11-12 |
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