SEIKO Prospex Speedtimer 1/100 Second Solar Chronograph SFJ001 SEIKOLUX an automatic timepiece with a

an automatic timepiece with a then exceptional water resistance of 150 meters

and includes a curved anti-reflective sapphire crystal

Mido showcases the heart of its automatic movement by revealing its finely skeletonised plate

DVII SQ 29MM SS RD 3ROWST IND SUB SEC

Since its earliest days

SEIKO Prospex Speedtimer 1/100 Second Solar Chronograph SFJ001 SEIKOLUX an automatic timepiece with aProspex Speedtimer 1 100 Second Solar ChronographInspired by Seiko's and the worlds first analog quartz chronograph, which featured a 1 100 second stopwatchFeatures the new solar chronograph 8A50 movement, with precision stopwatch timing to 1 100 second, measurement up to 60 minutes of elapsed time, and a split time functionPowered by light energy no battery change required6 month power reserve once fully chargedWhite dial with four inset black