Case material: Yellow gold; Charge: Manual; Conditions: Used Year : 1980; Presentation condition : With dealer guarantee ; Price on request Gmtbroker Reference: 33059/000J A Very Rare 18k Yellow Gold Métiers D'Art $20 Gents Wristwatch, an 18k yellow gold 20 dollar outer case, open work skeleton dial, small seconds at 6 0'clock, a fixed 18k yellow gold polished bezel,   an original  brown leather strap with an original 18k yellow gold pin buckle, mineral glass, manual wind movement, in excellent condition, comes with a Vacheron & Constantin box, our own certificate of authenticity and our own one year warranty. N.B. T he dial is hinged within a United States of America twenty dollar coin, which opens when the push button on the outside of the case is pressed. This is a very unusual timepiece and not something often seen so would make a unique addition to any collection.