Dimensions of the case: L x W x H = 47.5 x 42.3 x 11.4 mm; weight: 146 g Material of the case and bezel Band made of stainless steel Solid Stainless Steel Band Three-fold one-touch clasp Resistance to water Water resistance of 100 meters Battery life and power source The SR927W's battery lasts about five years. Features of the Watch One-second stopwatch The Measuri