Lightweight, breathable and surprisingly tough, the Timex Ironman Watch is made to withstand the rigor of the world’s toughest endurance event. With easy-to-use run timers and interval modes, it’s no wonder this is a best-seller. Watch Features Chronograph training log stores workouts by date with best lap, average lap & total segment time Water Resistance: Up to 100m Attachment Type: Buckle Case Material: Resin 3 customizable alarms: daily/weekday/weekend/weekly options 50-lap memory NIGHT-MODE®