From the Ironman collection. With Timex's Ironman® T300 they bring that crucial extra level of functionality to a watch made for recreational runners, adding in special functions to support hiit sessions and take your cross-training to the next level. The watch features include a performance pacer, hydration and nutrition alerts, a 500-lap memory and interval tracking with six customizable segments, helping you log more consistent workouts with fewer distractions. And because it’s a timex® ironman® watch, you’ll also get a 50-meter water resistance rating, three alarms and Timex's classic indiglo backlight, all packed into a slim profile that performs for years at a time on a simple coin-cell watch battery you’ll never need to charge.