$8700 Spring Drive Drive system Spring DriveCaliber No. 9R65Case Stainless steelBezel Stainless steel and black hard-coated stainless steelCase back Screw case backGlass Sapphire crystal with anti-reflective coatingBracelet Solid stainless steelBuckle Stainless steel with three-hold clasp with secure lock, push button release and diver adjusterAccuracy ±1 second / dayWater resistance 200 mMagnetic resistance 4800 A/m (60 Gauss)Weight 201gCase thickness 14.0mmCase diameter 44.2mmJewels 30RemarksOne-way rotating bezelScrew crownAutomatic (hand winding capability)Power reserve indicatorPower Reserve: Over 72 hoursAccuracy: +/- 1 second per day30 jewels276 partsSapphire crystal with anti-reflective coatingOne way rotating bezel