Seamaster 300 41 mm, steel on steel 234.30.41.21.03.001 Seven Friday Manufacture RolexPrecision: 2 +2 sec day after Manufacture RolexPrecision: 2 +2 sec day after casingOscillator: Paramagnetic blue Parachrom hairspring with high performance Paraflex shock absorbersWinding: Bidirectional self winding via Perpetual rotorPower Reserve: Approximately 70 hoursDial Color: WhiteHands: Chromalight with long lasting blue luminescenceCase Shape: RoundMaterial: Everose Rolesor – combination of Oystersteel and Everose goldBezel: FlutedCrystal: Scratch resistant sapphire with Cyclops lens over the dateCase Back: Screw down case backDiameter: 36 mmWater Resistance: 100 meters 330 feetCase Specificities: Screw down crown screw down crownWeight: [Not specified]Bracelet: Brown leather strap with buckleCollection: PR 100Manufacturer Warranty: 2 Years ) 153 g Calibre Omega 8912 Movement type Self winding Power reserve 60 hours Material Steel Type of Clasp Foldover clasp with comfort setting 001 Between lugs 21 mm Lug‑to‑lug 48