Seiko - Sur604P1

Movement Caliber Number 6N42 Precision ±15 seconds per month Battery life Approx. 3 years Case/Band Case Material Stainless steel Case Size Thickness:8.2mm Diameter:34.0mm Lug-to-lug:41.5mm Crystal Sapphire crystal Clasp Three-fold clasp with push button release Distance between lugs 10 Other Details Water Resistance 10 bar Magnetic Resistance 4,800 A/m Weight 93.0 Features Screw case back