From Victorinox, the highlight of Concept One Solar is its groundbreaking Swiss-made solar movement, Ronda 215, which powers an 8-year battery life. Other high-performance features include double antishock protection and magnetic resistance, a curved blue dial, a 39mm stainless steel case, anti-scratch protection on the stainless steel bezel and a changeable storm grey rubber strap.39mm stainless steel caseStorm grey dial with luminescent indices and handsScrew-in caseback with sapphire crystalDate windowAnti-reflection sapphire crystalSwiss-made solar movement, Ronda 215Bracelet material: Storm Grey RubberVictorinox Style #: 242052