Skip to content
Seiko Prospex

Seiko Prospex

AutomaticSteel

Ref. SLA021J1

Collection: ProspexCase size: 44.3mmMovement: 8L35

The Seiko Prospex, reference SLA021J1, is a dive watch with a 44.3 mm steel case. The case carries a water-resistance rating of 300 metres. The movement is self-winding calibre 8L35, which has a power reserve of approximately 50 hours. The dial is covered by a sapphire crystal with an anti-reflective coating. A steel bracelet closes with a folding safety clasp with a three-fold construction and push-button release. The movement has an accuracy of minus 10 to plus 15 seconds per day. The bezel has a ceramic insert.

Add to my inventory

Free account required - pre-fills all specs automatically

Last updated 9 Oct 2026Suggest a correction

FOR WATCH DEALERS

Trading the Seiko Prospex?

Clone any catalog watch into your stock, sync it to Chrono24 and eBay, and invoice it with your own tax settings.