Girard Perregaux a lady's diamond set cocktail watch, circa 1955, Manufacturer: Girard Perregaux, movement no.: 51EU, case no.: 69730047, material: 18k gold white gold and diamonds, calibre: manual, cal. 860, 17 jewels, Bracelet/Strap: 18ct white gold max length 165 mm, Clasp/Buckle: 18ct white gold clasp, makers mark, dimensions: 15.5 mm diameter, signed: case, dial, movement, and clasp signed