From the Coutura CollectionSolarPowered by light energy - no battery change required10-month power reserve once fully chargedGray dial with blue accentsDate calendarLumiBrite hands and markersSapphire crystalBezel with blue ion finishScrewdown casebackCase diameter: 42.5mmStainless steel case and braceletCabochon crownWater-resistant to 10 bar, 100 meters (330 feet)Caliber V157