All Seiko lines › Seiko 5 Sports › SKX series
“DressKX”
Seiko 5 Sports SKX series, 40 mm (4R36)
Collector nickname. Where the name comes from
10 versions of this watch are on Seiko's own sites right now, across 32 regions. Last checked Nov 13, 2026.
Estimated US price: About $290 to $355 from Seiko's US list price and its list prices in other countries, converted.
Retailers ask: no retailer listing matched yet.
Black
Photos are Seiko's own, shown from Seiko's sites. Click a photo to jump to that version.
- Calibre
- 4R36
- Case diameter
- 40 mm
- Thickness
- 11.5 mm
- Lug to lug
- 44.6 mm
- Variants listed now
- 10
- Regions
- 32
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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 | SRPE53 Also coded SRPE53K1 | Not published | Not stated Clasp: Three-fold clasp with push button release 142 g | Stainless steel | Regular | 30 regions | 320 EUR Belgium · Nov 13, 2026 about $355 in US dollars | Not seen in stock 1 seller checked | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (34 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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 | SRPE55 Also coded SRPE55K1 | Not published | Not stated Clasp: Three-fold clasp with push button release 142 g | Stainless steel | Regular | 23 regions | 295 EUR France · Nov 13, 2026 about $345 in US dollars | Not seen in stock 1 seller checked | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (24 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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 | SRPE57 Also coded SRPE57K1 | Black Seiko USA store tag | Not stated Clasp: Three-fold clasp with push button release 142 g | Stainless steel | Regular | 22 regions | 315 USD USA · Nov 13, 2026 | Not seen in stock 2 sellers checked | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (24 sites) and its list prices
Buying options (2)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.
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SRPE51 Also coded SRPE51K1 | Not published | Not stated Clasp: Three-fold clasp with push button release 142 g | Stainless steel | Regular | 17 regions | 310 EUR France · Nov 13, 2026 about $345 in US dollars | Not seen in stock 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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 | SRPE65 Also coded SRPE65K1 | Not published | Not stated 75 g | Stainless steel | Regular | 13 regions | 260 EUR France · Nov 13, 2026 about $300 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (14 sites) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SRPE63 Also coded SRPE63K1 | Not published | Nylon 75 g | Stainless steel | Regular | 12 regions | 260 EUR Italy · Nov 13, 2026 about $300 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (13 sites) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SRPE61 Also coded SRPE61K1 | Not published | Nylon 75 g | Stainless steel | Regular | 11 regions | 270 EUR Portugal · Nov 13, 2026 about $290 in US dollars | Not seen in stock 1 seller checked | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (12 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.
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SRPE67 Also coded SRPE67K1 | Not published | Nylon 75 g | Stainless steel | Regular | 11 regions | 260 EUR Italy · Nov 13, 2026 about $290 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (12 sites) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SRPE69 Also coded SRPE69K1 | Not published | Nylon 75 g | Stainless steel (hard coating) | Regular | 11 regions | 300 EUR Italy · Nov 13, 2026 about $330 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (12 sites) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SRPG63 Also coded SRPG63K1 | Not published | Nylon 75 g | Stainless steel | Regular | 11 regions | 290 EUR Portugal · Nov 13, 2026 about $320 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (12 sites) 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 | 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 | Hardlex | Seiko product page |
| Lug width | 20 mm | Seiko product page |
| Seiko case codes | 4R36-08L0 | 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. 20 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.
| “DressKX” | Collector nickname. Source names SRPE53. “SRPE53 “DressKX”” | Teddy Baldassarre read 2026-11-12 |
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Related lines
- “5KX” · Seiko 5 Sports SKX series, 42.5 mm, 13.4 mm thick (4R36)
Seiko links these on its product pages
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