Seiko Prospex Speedtimer Solar Chronograph SSC813 Mens Framed by a tachymeter scale

Framed by a tachymeter scale

The entire watch is chronometer-certified by the COSC

1mm   Crystal                                                 Curved Hardlex LumiBrite                                            LumiBrite on hands and index(es) Band Material                                     Nylon Distance between lugs                         20

Each Khaki Field Mechanical Bronze has a unique story that will unfold with each wear as its case develops a distinct patina over time

Seiko Prospex Speedtimer Solar Chronograph SSC813 Mens Framed by a tachymeter scaleDesign 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