Current Production
Prospex
SEIKO SPB117
MSRP
$750 USD
Verified Aug 18, 2026
Case diameter39.5 mm
Lug-to-lug46.4 mm
Thickness13.2 mm
Case materialStainless steel
CrystalSapphire crystal with anti-reflective coating on the inner surface
Water resistance200 m
MovementAutomatic, Caliber 6R35, 21,600 vibrations per hour, 24 jewels, Power reserve: approximately 70 hours
Calibre6R35
Power reserve70 hours
DialBlack
Bracelet or strapStainless steel bracelet
Specifications as published by Seiko →
Last verified Aug 18, 2026