SEIKO SSB347

 Caliber 8T63 Quartz Movement: ±15 s/mo accuracy; \~3 yr battery
 Chronograph & Timekeeping: 24 h hand, small-seconds subdial, 60 min chronograph (0.2 s increments) & date
 Case: 43.9 mm Ø × 12.9 mm thick stainless steel (hard coating); 51.1 mm lug-to-lug
 Crystal: Hardlex with LumiBrite on hands & indices; tachymeter scale
 Band: 22 mm cow‐leather strap; three-fold push-button clasp
 Water Resistance: 10 bar (100 m)
 Case Back: Screw-down; weight \~108 g