Essential Details Dimensions of the case (L x W x H): 53.5 x 48.5 x 11.5 mm; weight: 198 g Material of the case and bezel Band made of stainless steel 3-fold, 1-press, double-lock Clasp Band Made of Stainless Steel Firm Band One hundred meters of water resistance Battery life and power source The SR927W's battery lasts about two years. Second warranty period