If you know sports watches, you know TIMEX® IRONMAN®, the name that's crossed more finish lines than any other. With our IRONMAN® T300 we bring that crucial extra level of functionality to a watch made for recreational runners like us, adding special functions to support HIIT sessions and take your cross-training to the next level. The watch's 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 100m water resistance rating, three alarms, and our classic INDIGLO backlight, all packed into a slim 42.6 profile that performs for years at a time on a simple coin-cell watch battery you'll never need to charge.