This tissot t-touch expert solar watch is the world's first solar-powered touch screen watch. It boasts a black backlit dial that is easy-to-read with luminous hands and indexes, and sapphire crystal in a 45. 0mm titanium case. The quartz movement stays fully charged for a year even if stored in a dark vault and recharges with ambient light in one week. Water-resistant up to 100 meters and securing with a black rubber strap with fold-over clasp. This watch includes a two-year limited manufacturer warranty. We are an authorized tissot dealer.