EFR-547BKG-1AVUDF

Case / bezel material: Stainless steel / AluminumStainless Steel BandOne-touch 3-fold ClaspBlack ion plated caseBlack ion plated bandScrew Lock BackMineral GlassRose gold ion plated band100-meter water resistanceLED light (Super Illuminator) Afterglow1/10-second stopwatch Measuring capacity: 59'59.9'' Measuring modes: Elapsed time, split time, 1st-2nd place timesDate displayRegular timekeeping: 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 (3 hands and 3 dials) 2 years on CR1616 (Light 16 [sec/day])