Dive
by Seiko
Seiko Prospex Speedtimer Mechanical
Prospex Speedtimer · Prospex Speedtimer Mechanical
- Case
- 39.5 mm
- Thickness
- 12 mm
- Lug width
- 20 mm
- Crystal
- Sapphire
- Market price
- $995
Updated 11 November 2026
About this watch
The Seiko Prospex Speedtimer Mechanical is a 39.5 mm watch from the Prospex Speedtimer collection. Its stainless steel case is 12 mm thick and 44.5 mm from lug to lug, with 20 mm lugs. It is water resistant to 200 m. The crystal is sapphire.
The manufacturer’s list price is US$995. It comes in 2 versions.
Your next watch
Find your next watch, not just a brand.
Every watch on Watcheers has its spec sheet in Watch Explorer. Filter by size, material and budget to find the one that fits.