The Ironman Triathlon Sleek 5/1 watch features an Indiglo night-light. ; Night-Mode feature. ; 100-hour chronograph with lap or split option, either in large digits. ; 50-lap memory recall. ; 99-lap counter. ; On-the-fly recall of lap or split option. ; Top pusher for easy lap split option. ; Total run format/synchro timer maintains total activity time (less time paused during workout) and overall running time. ; Chrono training log stores workouts by date, with best lap, average lap and total segment time ; 2 interval timers settable up to 24 hours with countdown/stop (CS) and countdown/repeat (CR). ; Automatic interval repetition counter. ; 3 alarms settable for daily/weekday/weekend/weekly. ; 2 time zones. ; Built-in setting reminders. ; Forward/backward setting. ; Stainless steel top ring for enhanced durability. ; All-day white reflector display. ; Co-molded dura-strength resin strap for improved fit. ; Water-resistant 100m. Measurements: ; Case Height: 33 mm ; Case Width: 39 mm ; Case Depth: 11 mm ; Band Width: 3 4 in ; Band Circumference/Length: 9 in ; Weight: 3 oz ; This product may have a manufacturer's warranty. Please visit the manufacturer's website or contact us at for full manufacturer warranty details.