Weight (gr) 135 Resistance to water pressure Water-resistant up to a pressure of 60 bar (600 m / 2000 ft) Case thickness 16.3 Case options see-through caseback, caseback with sapphire crystal, screw-down crown and caseback, ceramic bezel ring, Helium valve Case length 46.00 Case width 46.00 Case Material 316L stainless steel case horn width 22.00 | Case shape ROUND Crystal Scratch resistant sapphire crystal glass with antireflective dome Energy Automatic jewels 23 Model POWERMATIC 80.111 clock mechanism Swiss automatic Caliber 11 1/2''' Dial SDSLG (Hour Minute Seconds Date) | Caliber Diameter (mm) 25.6 power reserve Up to 80 hours of power reserve Functions Patented Nivachron balance spring Belt structure Synthetic Belt inner face Synthetic Strap details Rubber Clasp standard buckle |