Mid-century 9ct white gold and diamond cocktail watch by Favre-Leuba marked Lavina 9ct, the clasp is marked English export 9ct marks JC&S Joseph Cook & Sons, case width 16.5 mm, weight ex movement 10.5 grams, bracelet length 17 cm, manual wind movement working when tested 24x single cut diamonds = 0.24ct, 2@ round brilliant cut diamonds = 0.08ct estimated.