• Movement • Caliber Number • 4N30 • Precision • ±15 seconds per month • Battery life • Approx. 3 years • Exterior • Case Material • Stainless steel • Crystal • Hardlex • Other Details • Water Resistance • 5 bar • Case Size • Thickness:6.3 ㎜Diameter:22.4 ㎜ • Lug-to-lug:29 ㎜ • Distance between lugs : 11 mm • Weight • 43.0 g • ClaspThree-fold clasp with push button release