Waterproof welded construction with roll-top closure

Function: Time Date

The case uses stainless steel to power your watch movements

The A-2S Vintage Black dial is painstakingly authentic and functional

Adjustable cuff fits a wide range of arm sizes (9–17” [22–42 cm] circumference)

SEIKO Men's Black Dial Stainless Steel Band Prospex Speedtimer Chronograph Solar Quartz Watch - SFJ007 Case material_steel Waterproof welded construction with roll-topSEIKO Men's Black Dial Stainless Steel Band Prospex Speedtimer Chronograph Solar Quartz Watch On the eve of the 2023 World Athletics Championships in Budapest, Hungary, Seiko is rolling out a new sports timing caliber in its latest Solar Speedtimer. Called Calibre 8A50, this 1 100th of a second chronograph is capable of timing multiple sporting events (ie: multiple lap times) with incredible precision and accuracy. With a water resistance of 100m and