Current Production
Essentials
SEIKO SSB445
MSRP
$365 USD
Verified Aug 18, 2026
Case diameter43 mm
Lug-to-lug50.4 mm
Thickness11.6 mm
Case materialStainless steel
CrystalSapphire crystal
Water resistance100 m
MovementQuartz Chronograph, Caliber 8T63
Calibre8T63
DialBlue
Bracelet or strapStainless steel bracelet
Specifications as published by Seiko →
Last verified Aug 18, 2026