URWERK UR-210 STEEL: TECHNICAL SPECIFICATIONS Case: steel and titanium Dimensions: Length 53.6mm; width 43.8mm; height 17.8mm Movement: Calibre UR-7.10, automatic winding, 39-hour power reserve, 28,800v/h,4Hz. Automatic winding dampened by turbines. Indications: Patented satellite complication showing wandering hours; three-dimensional minutes hand; power-reserve indicator; patented winding efficiency indicator. Hours, minutes and markers painted in Super-LumiNova® Controls: Two-position winding and setting crown Winding regulator on the back