Driving system	Automatic with manual winding mechanismCaliber Number	4R57Case	Stainless steel case Case back: stainless steel and glassGlass	Box shaped glassDrive duration	Power reserve: 41 hoursWater resistance	5 bar water resistanceMagnetic reluctance	Magnetic resistanceSize	H47.5mm x W40.5mm x D14.4mmThe perimeter of bracelet	195mmWeight	84gDriving system	See-through case backScrew case backJewels: 29 jewelsDate handPower reserveStop second hand function Also Known As SARY135