Casio F-91WS-8EF

To ensure visibility in dark environments, the display is illuminated by a micro lamp at the push of a button. The stopwatch function measures elapsed time, split time, and final time with an accuracy of one-hundredth of a second. The watch's measurement capacity extends up to one hour. 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 adjusted to either a 12-hour or 24-hour format. Resin, made from synthetic resin, is the ideal material for watch bands due to its extreme durability and flexibility. The battery provides the necessary energy for approximately 7 years. This model is waterproof according to DIN 8310 and ISO 22810, and can withstand light splashes. Greater contact with water should be avoided.