10 years lifespan 100M water resistant LED backlight If you leave a blinking screen for 2 or 3 minutes without operation, the watch automatically saves the settings up to that point and closes the settings screen. Dual Time Drug life: 10 years from CR2025 Be sure to check the detailed product description at the bottom and precautions before purchasing! To request a return or exchange, please note that it is mandatory to provide a video of the unpacking of the package. Comparez les prix de: Casio in Montres