Seiko Prospex Speedtimer Solar Chronograph SSC813 Mens The entire watch is chronometer-certified

The entire watch is chronometer-certified by the COSC

Stainless Steel

Framed by a tachymeter scale

8mm Crystal Sapphire crystal Crystal Coating Anti-reflective coating on inner surface LumiBrite LumiBrite on hands

Seiko Prospex Speedtimer Solar Chronograph SSC813 Mens The entire watch is chronometer-certifiedDesign inspired by Seiko's first precision chronographs, developed for international sporting competitions in 1964Powered by light energy no battery change required6 month power reserve once fully chargedChronograph measures up to 60 minutes of elapsed time in 1 5 second increments with split time measurement functionWhite dial with sand blasted texture and black subdialsDate calendar24 hour subdialBeige LumiBrite hands and markersCurved sapphire