Classic styling and updated functionality make the Timex Ironman Core 50 Full Size watch popular with athletes of all abilities. . 99 lap counter. 24 hr. countdown timer and two interval timers with stop and repeat functions are easy to use. Automatic interval repetition counter. Alarms can be set to go off daily, on weekdays, or on the weekend. Displays month, day, and date two time zones allow for easy travel. Easy to set, thanks to onscreen prompting. Easy to view in low light conditions with Indiglo night light. Durable and lightweight resin case resin strap. Water resistant to 100 m.