To ensure visibility in dark environments, the display is illuminated by a micro lamp at the push of a button. The battery powers the watch for approximately 7 years. Elapsed time, split time, and final time are measured with an accuracy of one-hundredth of a second. The watch can measure time up to one hour. This model is waterproof according to DIN 8310 and ISO 22810, meaning it can withstand light splashes. The daily alarm reminds you of recurring events with an acoustic signal at the set time. Once set, the automatic calendar always displays the correct date. The time display can be set to either a 12-hour or 24-hour format. In 12-hour mode, a "p" in the display indicates the second half of the day, from 12 noon to 11:59 PM. Hard, durable, and elegant: the stainless steel bracelet is a classic for watches. For optimal wearing comfort, the clasp can be easily and individually adjusted.