48.6 × 43.8 × 11 mm (L × W × H) and 128 g in weight Material of the case and bezel Band made of stainless steel Band Made of Stainless Steel Three-fold one-touch clasp Resistance to water Water resistance of 100 meters Battery life and power source The SR920SW's battery lasts about two years. Features of the Watch One-tenth-second stopwatch Capacitor measurement