Bering - 14440_222 - Slim Solar Watch Men's Watch with date display. With this clock, the light is converted into electrical energy. The housing is made of brushed, black stainless steel and has a diameter of 40 mm. The watch glass is made of scratch-resistant sapphire crystal and crystal clear. The mesh bracelet has a width of 22 mm and closes with a length-adjustable clasp closure. The Clock is water resistant to 5 ATM. The power reserve is 6-12 months (no more battery change)