Up for grabs is an Audemars Piguet Coin watch
Reference 35677BA in 18kt yellow gold based on a US $20 Gold Coin
Extremely rare variant with skeletonized dial and decorated movement. You would be hard pressed to find one of these online, let alone for sale. Someone did post a picture of an example that’s at AP in Le Brassus during his attendance of the Master Class (https://www.suitelife.blog/audemars-piguet-master-class/). Another, wristwatch example, was once offered by Justin Gruenberg here: https://thekeystone.com/products/audemars-piguet-yellow-gold-skeleton-coin-watch?variant=14615293624379
The present example I have is a D series, so it was produced probably in the late 1980’s. These were made in 18kt gold, they are 35mm. Front of the case has the “heads” side of a coin and the back is the “eagle”. There is a button on the side which opens the top portion revealing the watch watch. The watch can then be pulled up and spun around to view both sides of the movement. Inside of the case is stamped AP with serial number and appropriate hallmarks.
The movement is an AP Cal. 2003 manual wind. Signed, decorated, and numbered.
This watch also comes with AP boxes, the leather pouch, AP guarantee book (not filled or dated) and most importantly the matching hang tag with original price and serial number. If you Google the model number, you literally get zero results, which shows you the rarity here. Certainly there are other examples of AP Coin watches at past auctions, but most were plan white or champagne dial models.