From the Essentials Collection45 crystals set on the bezelPowered by light energy - no battery change required12-month power reserve once fully chargedPatterned mother-of-pearl dialGold Arabic numerals and stick indicesCase diameter: 30.5mmStainless steel case and bracelet in two-tone finishTri-fold push button release claspWater-resistant to 3 bar, 30 meters (100 feet)Caliber V115