Current Production
SBGM247
GRAND SEIKO SBGM247
MSRP
$6,100 USD
Verified Aug 18, 2026
Case diameter40.5 mm
Lug-to-lug48.6 mm
Thickness14.4 mm
Case materialStainless steel
Water resistance200 m
MovementSelf-winding with manual-winding
Calibre9S66
Power reserve72 hours
Specifications as published by Grand Seiko →
Last verified Aug 18, 2026