Current Production
Prospex Speedtimer 1/100 Second Solar Chronograph Limited Edition
SEIKO SFJ005
MSRP
$925 USD
Verified Aug 18, 2026
Case diameter42 mm
Lug-to-lug48.27 mm
Thickness12.91 mm
Case materialStainless steel
CrystalCurved sapphire crystal with anti-reflective coating on the inner surface
Water resistance100 m
MovementSolar Chronograph, Caliber 8A50, Powered by light energy - no battery change required, 6-month power reserve once fully charged
Calibre8A50
DialCharcoal
Bracelet or strapStainless steel bracelet with black center links
Specifications as published by Seiko →
Last verified Aug 18, 2026