HardlexCase SizeThickness: 12.4 ㎜Diameter: 46.7 ㎜MovementCaliber NumberV157Movement TypeSolarDurationOperating for approx. 10 months (when fully charged)Accuracy±15 seconds per monthOther DetailsClaspThree-fold clasp with secure lock ,push button releaseLumiBriteLumibrite on hands and indexsWater Resistance200m / 660ft diver'sFeaturesDate displayOvercharge prevention functionQuick-start functionUnidirectional rotating bezel