Technical specification Reference 3191.1MAR Functions Hours, minutes, small seconds at 6 o´clock and date at 3 o´clock Movement CYS 5157, base SW 260-I, 11 1/2”, automatic, diameter 25.60 mm, height 5.60 mm, power reserve 38 hours, 31 jewels, frequency 28’800, rotor finishing with fan decoration and CyS engraving Case Stainless steel, diameter 40 mm, height 11.15 mm, double curved sapphire crystal typical from the 50’s, water resistant to 3 ATM, screwed sea through case back with decoration Dial Available in orange, yellow and light blue color, sunray background finishing, index applied with rhodium treatment, date at 3 o´clock and small seconds at 6 o´clock, 11 superluminova point at the hours, CyS emblem applied at 12 o´clock Hands Hours, minutes with superluminova, small seconds round shape, rhodium treatment, exclusive CyS design Strap Louisiana alligator Buckle Stainless steel folding buckle, engraved CyS emblem