OMEGA astronomical 18k pink gold gents wristwatch Cosmic The Museum Collection 1951, self winding, Switzerland around 2001, made ina limited special edition of 1951 pieces according to an old model, original leather strap with original 18k pink gold 18k, solid two-piece construction case, case back screwed-down 4-times, black contrast dial with raised indices, alpha hands, display of hours, minutes, constant second, day, date, month & moon phase, correction at the sides in case inserted, fine, rhodium plated movement, 31 jewels, calibre 2601 (basic Fréderic Piguet), adjusted in 5 positions, fausses cotes decoration, measures approx. 33,5 x 33,5 mm, original box, setting pin & user manual, condition 2-3, property of a collector