Timex-Ironman-Easy-Trainer-Strapless-GPS-Heart-Rate-Monitor-Watch-Black-Timex-T5K754-P-This-GPS-ironman-easy-trainer-from-Timex-is-ideal-for-the-serious-road-runner-as-it-provides-accurate-speed-pace-&-other-important-data-The-watch-s-GPS-technology-finds-satellites-from-almost-anywhere-in-the-world-so-you-have-the-information-you-need-to-train-efficiently-Your-speed-distance-&-pace-are-determined-based-on-how-your-position-changes-relative-to-the-satellites-Set-the-time-zone-u