The Timex Ironman Triathlon 150 Lap watch, supplied by Totally Fitness is well-known and popular in sports. It consists of a segmented memory, serving as a training diary. Interims, best interim, average interim and whole times of the training unit are memorized under the current date for each training unit. The interval-timer functions allow a connection of up to nine different intervals into a complete interval training including three varieties at the end: end, repetition or start with stop watch function.