Men's SSC961 Prospex SPEEDTIMERDesign The case shape is faithful to the original but its 39mm diameter, the combination of hairline and smooth polishing on the bracelet and the curved sapphire glass bring it right up to date. Specifications Movement Caliber Number V192 Movement Type Solar Precision 15 seconds per month Power reserve Operating for approx. 6 months (when fully charged) Functions Overcharge prevention function 24 hour hand Equipped with small seconds hand Chronograph