Automatic mechanical movement J820.1 with display for date, chronometer with official certification, rhodium plated movement with Incabloc shock-absorber, „Côtes de Genève“ finishing on rotor, 13 blued steel screws, 25 jewels, power reserve 42 hours, frequency 4 Hz (28.800 vibrations per hour), adjustment in 5 positions, stainless steel case Ø 38.4 mm, 5-times screwed back with mineral crystal, convex hard Plexiglass with SICRALAN coating, silver plated dial with four appliques, luminous applique at 12 o‘clock, luminous hands, horseskin strap with stainless steel buckle, water-resistant up to 3 atm.