The daily alarm reminds you of recurring events, emitting an acoustic signal at the set time. Resin is made from synthetic resin and, due to its extreme durability and flexibility, is the ideal material for bracelets. 7 years - 1 battery. LED light. The resin case is robust, very lightweight, and relatively resistant to cold, heat, or other external influences. The acrylic glass is lightweight and relatively shatterproof. 12/24-hour format. Automatic calendar with date, month, and weekday. Stopwatch function - 1/100 sec. - 1 hr. The bracelet is equipped with a pin buckle. Showering and bathing with this watch is possible - it has been tested for water resistance up to 5 bar according to ISO 22810.