Current Production
Essentials
SEIKO SUR421
MSRP
$235 USD
Verified Aug 18, 2026
Case diameter39.4 mm
Thickness6.84 mm
Case materialStainless steel
CrystalSapphire crystal
Water resistance100 m
MovementQuartz, Caliber 6N52
Calibre6N52
DialIvory
Bracelet or strapBrown leather strap
Specifications as published by Seiko →
Last verified Aug 18, 2026