Display lighting. To ensure visibility in dark environments, the display is illuminated by a micro-lamp at the push of a button. Stopwatch function - 1/100 sec - 1 hour. Elapsed time, split time, and final time are measured with an accuracy of hundredths of a second. The watch's measuring capacity extends up to one hour. Daily alarm. The daily alarm reminds you of recurring events with an acoustic signal at the set time. Automatic calendar. Once set, the automatic calendar always displays the correct date. 12/24-hour format. 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. Resin strap. Resin is made from synthetic resin and is the ideal material for straps due to its extreme durability and flexibility. 7 years - 1 battery. The battery provides the watch with the necessary energy for approximately 7 years. Water resistance classification (WR) according to ISO 22810. This model is water-resistant according to DIN 8310 or ISO 22810, meaning it can withstand light splashes. Greater water contact should be avoided.