Seiko - Swr104P1

Movement Caliber Number 4N30 Movement Type Quartz Precision ±15 seconds per month Battery life Approx. 3 years Case/Band Case Size Thickness:6.4mm Diameter:27.2mm Lug-to-lug:39.0mm Crystal Sapphire crystal Band Material Cow leather Distance between lugs 22 Other Details Water Resistance 5 bar Magnetic Resistance 4,800 A/m Weight 31.0