SEIKO SSB413

 Caliber 8T63 Quartz Movement: ±15 s/mo accuracy; \~3-year battery life
 Chronograph & Timekeeping: 24-hour hand, small-seconds subdial, 60 min chronograph (0.2 s increments) & date
 Stainless-Steel Case: 43.0 mm Ø × 11.6 mm thick (50.4 mm lug-to-lug); 22 mm lug width
 Sapphire Crystal for scratch resistance
 10 bar (100 m) Water Resistance
 Screw-Down Case Back with three-fold push-button clasp