EFR535BK-1A2VUDF

Case / bezel material: Stainless steelSolid BandStainless Steel BandOne-touch 3-fold ClaspMineral GlassScrew Lock BackBlack IP100-meter water resistance1-second stopwatch Measuring capacity: 59'59 Measuring modes: Elapsed time, split time, 1st-2nd place timesDate displayRegular timekeeping Analog: 3 hands (hour, minute, second), 3 dials (24-hour, stopwatch minutes, stopwatch seconds)Accuracy: ±20 seconds per monthApprox. battery life: 2 years on SR920SW