Vacheron & Constantin 18k Y/G Very Rare M tiers DArt 20 Dollar Coin 33059/000J

A Very Rare 18k Yellow Gold M tiers 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 originalbrown 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. The 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.