BERING Solar | Titanium Brushed Black watch | 15239-727 The BERING Slim Solar collection beats to the rhythm of nature! Because its energy source is environmentally friendly and infinitely available: light! Not only sunlight but any kind of light is converted into electrical energy by the solar cell under the face and stored in a rechargeable secondary battery. No battery change is required as in quartz watches. The watch has a power reserve, so that - once fully charged – it runs for 6 to 12 months. Even if it is stored in complete darkness during this time. Scratch resistant sapphire crystal and ultra light titanium case and strap. Brand: BERINGGender: MensCase Size: 39mmWater Resistance: 100 MetresModel Name: Solar TitaniumGuarantee: 3 YearsPackaging: BERING packagingMPN: 15239-727