SSC931 Prospex Speedtimer Solar Chronograph CASE DIMENSIONS: DIAMETER: 41.4 mm THICKNESS: 13.0 mm LENGTH: 45.9 mm MOVEMENT: Caliber V192 Powered by light energy – no battery change required 6-month power reserve once fully charged CASE: Stainless steel case CRYSTAL: Curved sapphire crystal with anti-reflective coating...