When Seiko discontinued the SKX007 in 2019, the Seiko 5 Sports (SRPD) took over its case. They look alike, but they are different watches. Here is the honest comparison.
| Seiko SKX007 | Seiko 5 Sports SRPD | |
|---|---|---|
| Case | 42 mm, 46 mm lug-to-lug, 13.5 mm thick | 42 to 42.5 mm, about 13 mm thick |
| Movement | 7S26, 21 jewels | 4R36, 24 jewels |
| Hacking / hand-winding | No / No | Yes / Yes |
| Power reserve | About 40 hours | About 41 hours |
| Water resistance | 200 m, ISO-rated diver | 100 m |
| Crown | Screw-down | Push-pull |
| Caseback | Solid steel | Exhibition (see-through) |
| Crystal | Hardlex | Not stated by our sources |
| Lug width | 22 mm | 22 mm |
| Status | Discontinued 2019, buy used | In production |
Choose the SKX007 if
- you want a real diver’s watch with a screw-down crown and 200 m rating,
- you like the idea of an icon that has stopped production,
- you are happy to buy secondhand and check it carefully.
Choose the Seiko 5 Sports if
- you want hacking and hand-winding,
- you want a new watch with a warranty and lots of colours,
- you will use it for everyday wear rather than serious diving.
Buying a used SKX? Many are modded, so check the caseback with the Franken Checker and estimate a fair price with the value calculator. Both take 22 mm straps; find one with the strap finder.
Frequently asked questions
Is the Seiko 5 Sports a replacement for the SKX007?
It uses the same 42 mm case shape and a better movement, but it is a 100 m sports watch, not a 200 m ISO-rated diver with a screw-down crown.
Is the SKX007 still worth buying?
Yes, if you find an unmodded one at a fair price. eBay sold data puts unmodded SKX divers at roughly $238 to $374 in late 2026.
Can I swim with the Seiko 5 Sports?
Its 100 m rating is fine for swimming, but the crown is push-pull rather than screw-down, so make sure it is pushed in.