EFV-510D-1AVUDF

Case / bezel material: Stainless steelGenuine Leather BandMineral GlassScrew Lock Back100-meter water resistance1/10-second stopwatch Measuring capacity: 59'59.9''Date displayRegular timekeeping Analog: 3 hands (hour, minute, second), 3 dials (stopwatch 1/10 seconds, stopwatch minutes, stopwatch seconds)Accuracy: ±20 seconds per monthApprox. battery life: 3 years on SR920SW