Frederique Constant Highlife Heart Beat Stainless Steel Black Dial Automatic Movement 41mm FC-310BN4H6BFunctions: Hours, Minutes, Seconds, Heart Beat at 12 o'clockREFERENCE : FC-310 (Base SW200)Type of movement: AutomaticPower reserve (hours): 38hVibrations per hour: 28'800 alt/hJewels: 26Material: Stainless steelColour; Stainless steelDiameter or dimensions (mm); 41Thickness (mm): 10.84Lug width (mm); 22Water-resistance (ATM): 10Colour: BlackFinishing: Matt with globe pattern embossed in the centerIndexes: Applied indexesMaterial: Stainless steelColour: Stainless steelDimensions (mm): 179Buckle: Folding buckle with push buttonsBuckle width: 18Strap width (=lug width); 25.5