MIYOTA No.OS21 movement (quartz chronograph) Diameter 39 mm Thickness 10.5mm SR927SW Battery Case material 316L stainless steel Glass K-1 hard mineral glass Rear cover Stainless steel press-fit 3ATM water resistance Warranty period 24 months Calfskin Belt Belt width 20 mm Tailstock width 18mm Buckle Pin buckle
Chronograph / Calendar / Tachymeter functions Weight Approximately 55g