Case size (L× W× H)
45.5 × 33 × 8.5 mmWeight
106 gCase and bezel material
Stainless steelBand
Stainless Steel BandOne-touch 3-fold ClaspWater resistance
50-meter water resistancePower supply and battery life
Approx. battery life: 3 years on SR621SW
Glass
Mineral GlassCompatible band size
150 to 205 mm
Moon data
Moon phaseAccuracy
Accuracy: ±20 seconds per monthOther features
Regular timekeeping: Analog: 3 hands (hour, minute, second)