Daily recurring events are reminded by the daily alarm, which sounds an acoustic signal at the set time. This model has five independent alarms - especially convenient for taking medication daily or keeping regular appointments. Resin is made of synthetic resin and its extreme durability and flexibility make it the ideal material for bracelets. For about 3 years the battery supplies the watch with the necessary energy. To keep everything in view even in dark surroundings, the display of the watch is illuminated by a light-emitting diode at the push of a button. Individually, carbon and resin are resilient and durable - in combination, they form a case that makes the watch even more resistant and insensitive to dust, shocks, heat, cold or humidity, thus providing extra durability. The hands and/or index are fluorescent coated and glow in the dark when the watch has previously been exposed to a light source. The world time function displays the times in up to 29 different time zones.