Dive
by Seiko
Seiko Prospex Sea The Black Series
Prospex Sea · Prospex Sea The Black Series
- Case
- 45 mm
- Thickness
- 13.2 mm
- Lug width
- 22 mm
- Crystal
- Sapphire
- Market price
- $765
Updated 11 November 2026
About this watch
The Seiko Prospex Sea The Black Series is a 45 mm watch from the Prospex Sea collection. Its stainless steel case is 13.2 mm thick and 47.7 mm from lug to lug, with 22 mm lugs. It is water resistant to 200 m. The crystal is sapphire.
The manufacturer’s list price is US$765.
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