Driving systemAutomatic with manual winding mechanismCaliber Number4R57CaseStainless steel case Case back: stainless steel and glassGlassBox shaped glassDrive durationPower reserve: 41 hoursWater resistance5 bar water resistanceMagnetic reluctanceMagnetic resistanceSizeH47.5mm x W40.5mm x D14.4mmThe perimeter of bracelet195mmWeight84gDriving systemSee-through case backScrew case backJewels: 29 jewelsDate handPower reserveStop second hand function Also Known As SARY135