Graziella Bulova Marine Star 45mm Automatic Divers Watch. 97A174

8N26AutomaticPowered by the release of a wound spring, mechanical movements never require a battery. Automatic mechanical movements have an oscillating weight that winds the spring with the motion of the wearer’s arm.Case Size (mm)-45Lug Width (mm)-22Band Type-Bracelet,Stainless SteelCase Material-Gold-Tone,Stainless SteelCrystal-Domed Mineral Crystal,Impact and shatter resistant, dome-shaped crystal raised at an angle within the bezelClasp-Safety Fold Over Clasp with Push ButtonDial-Black,Gold-ToneLuminous Hands and MarkersWater-Resistance-WR200/20Bar/660ft (Swimming, Marine Sports)Additional Functions3-HandAutomatic42-Hour Power Reserve