Padgriffin (Wikimedia Commons, CC BY-SA 4.0)
Specifications
| Case diameter | 42.5 mm |
|---|---|
| Case thickness | 13.4 mm |
| Lug-to-lug | 46.0 mm |
| Movement | Seiko 4R36 automatic — 24 jewels, hacking + hand-winding, ~41h reserve |
| Water resistance | 100 m (10 bar) — not ISO 6425 dive-rated |
| Crystal | Hardlex mineral |
| Crown | Push-pull (not screw-down) |
| Weight | approx. 170 g (steel bracelet) |
| JDM | No — part of the globally-sold Seiko 5 Sports catalog |
Seiko 5 Sports SRPD55: The SKX-Shaped Everyday Automatic
REF. SRPD55 · Sold out
USD 350 as of 2026-07-16
Sold out.
Pros
- Same 42.5 mm / 46 mm proportions collectors loved on the SKX, in a currently-produced watch
- 4R36 movement hacks and hand-winds, unlike the SKX's 7S26
- Display case-back and drilled lugs the SKX line never had
Cons
- 100 m water resistance and a push-pull crown mean it is not an ISO-rated dive watch like the SKX007 was
- Hardlex crystal, not sapphire, at this price point
- Showing sold out at Seiko's own US store and a major authorized retailer as of 2026-07-16
Spec-based, not worn
This page is built from official specs and live retailer checks, not a personal review unit — we flag that up front per our review policy.
Who this is for
If you like the SKX007's 42.5 mm case and roughly 46 mm lug-to-lug but want a currently-produced watch with a movement that actually hacks and hand-winds, the SRPD55 is the plainest entry point: black dial, day/date, stainless bracelet, no colourway gimmicks. See our full SRPD reference for how it sits in the wider SKX-to-5KX lineage, and our SKX007 reference for exactly what changed.
What it is not
It is not an ISO 6425-certified dive watch. The push-pull crown and 100 m water resistance rule that out, even though the case shape reads as a diver. Treat it as a dive-style everyday automatic, not a tool watch for actual diving.
Availability, checked 2026-07-16
Both Seiko's own US store and Long Island Watch, a longtime authorized Seiko retailer, showed the SRPD55 as sold out on the date we checked — and the same was true across the wider SRPD line at those two retailers, not just this reference. It remained listed as part of Seiko's current 5 Sports lineup on Seiko's official site at the same check, so this reads as a stock gap rather than a discontinuation, but confirm current availability before ordering rather than assuming either way.
Sources
FAQ
- Is the SRPD55 discontinued?
- Not as far as we can verify — it is absent from stock at Seiko's own US store and Long Island Watch as of 2026-07-16, but it remained listed as part of Seiko's current 5 Sports lineup on Seiko's official site at the same check. Sold out and discontinued are not the same thing; confirm directly before assuming either.
- Is the SRPD55 a real dive watch?
- Not by the ISO 6425 standard — it has 100 m water resistance and a push-pull (not screw-down) crown, so treat it as a dive-style everyday automatic, not a certified diver.
- What is the difference between the SRPD55 and the discontinued SKX007?
- Same case shape and roughly the same footprint, but the SRPD55 uses the newer 4R36 movement (which hacks and hand-winds, unlike the SKX's 7S26), drops to 100 m water resistance, and loses ISO diver certification.
This article is for information only and is not investment, valuation, or authentication advice. Prices, availability and release dates change — always confirm with the retailer or official source linked in the article before buying.
