Casio Collection Men's Watch LCW-M100DSE-2AER Radio Clock Solar. The description of this item has been automatically translated. LED light In order to have everything in view even in a dark environment, the display of the clock is illuminated by a light-emitting diode at the push of a button. Solar operation Solar cells provide the watch with energy independently and in an environmentally friendly manner. Surplus solar energy will be stored in a battery. Radio signal reception (EU, USA, Japan, China) Whether in Europe, North America and Japan or in large parts of Canada, Central ...