Vintage Omega Constellation Chronometer Automatic wristwatch from 1964: Movement: cal. 561, 24 jewels, adjusted five positions and temperature, signed OMEGA Watch Co. SWISS Serial number of the movement: 21262580 ( dates the watch to 1964 ) Country Of Manufacture: Switzerland Crystal: Acrylic ( genuine with Omega sign in the center ) Dial: original, silver, applied steel baton hour markers Hands: steel, black central second Band Type: brand new, black genuine leather strap Band Length: 21,5 cm including watch Special features: central second, date CONDITION: Dial: ORIGINAL, silver, with almost invisible patina Case: no major traces of use. Crown and caseback: without damage There are Omega sign and reference number on the inner side of caseback. High grade movement signed OMEGA WATCH Co SWISS is in very good working order. It keeps accurate time well. DIMENSIONS: Diameter without crown: 36 mm Diameter with crown: 36 mm Lug to lug width (lenght): 40 mm Thickness: 11 mm Lug width (strap): 18 mm Tracked and insured shipping 30 EUR ( European Union ) 50 EUR ( Worldwide )