EFR-539BKG-1AVUDF

Case / bezel material: Stainless steelStainless Steel BandOne-touch 3-fold ClaspBlack ion plated caseBlack ion plated bandScrew Lock BackMineral GlassRose gold ion plated band100-meter water resistance1/10-second stopwatch Measuring capacity: 59'59.9'' Measuring modes: Elapsed time, split time, 1st-2nd place timesDate 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: 2 years on SR920SW