Vacheron & Constantin A lady's 18ct gold watch with concealed dial and later bracelet. Dial: concealed, white with applied gold tone baton markers. Calibre: 153-1B manual winding movement, 17 jewels. Movement number: 517126. Case: 18ct gold, snap-on back. Case number: 291465. Closure: integrated 18ct gold textured bracelet and clasp, later addition. Dimensions: gross weight approximately 67 grams, 18 mm diameter, length approximately 160 mm. Signed: dial and movement. Accessories: none