Current Production
SBGW323
GRAND SEIKO SBGW323
MSRP
$5,900 USD
Verified Aug 18, 2026
Case diameter36.5 mm
Lug-to-lug42.7 mm
Thickness11.6 mm
Case materialStainless steel
Water resistance100 m
MovementManual winding
Calibre9S64
Power reserve72 hours
Specifications as published by Grand Seiko →
Last verified Aug 18, 2026