Current Production
SBGW306
GRAND SEIKO SBGW306
MSRP
$17,900 USD
Verified Aug 18, 2026
Case diameter36.5 mm
Lug-to-lug42.7 mm
Thickness11.7 mm
Case material18k rose gold
Water resistance100 m
MovementManual winding
Calibre9S64
Power reserve72 hours
Bracelet or strapCrocodile leather
Specifications as published by Grand Seiko →
Last verified Aug 18, 2026