The short answer
There is no legitimate buyer's guide for a fake Audemars Piguet Jules Audemars Moon Phase, because what you would be buying is an illegal counterfeit rather than a discounted original. Counterfeit watches cannot be lawfully imported into the United States and trafficking in them is a federal trademark crime. If the Jules Audemars Moon Phase is the watch you want, the only purchase that makes sense is a genuine example from an authorized dealer or a documented pre-owned piece from a specialist. The rest of this guide is written for that buyer, and it covers the details that keep you from paying real money for a fake.
What defines this reference
The Jules Audemars family is Audemars Piguet's classical dress line. It is round, restrained, and built in precious metal, which is the opposite of the oversized sports watches the brand is best known for. A moon phase variant adds a lunar calendar aperture to that quiet format.
Case and proportions
Genuine cases are round with short curved lugs that sit close to the wrist, and they are made in yellow gold, white gold, rose gold, or platinum. Expect a slim profile, a sapphire crystal, and a display back on most examples. A stainless steel Jules Audemars Moon Phase is a contradiction, and that alone rules out a large share of listings.
Dial and moon aperture
The moon disc is the point of the watch. On a genuine dial it is a rotating plate beneath the dial face with the moon and stars applied or printed on it, set behind a cleanly chamfered aperture. Under a loupe the printing is sharp, the aperture edges are even, and the moon sits in the correct position for the current date. Look at the date and moon together: they should agree with the calendar in your hand.
Movement
Genuine watches run in-house Audemars Piguet calibers with hand finishing you can see through the back: Geneva stripes, polished bevels, and blued screws. The moon phase is driven off the calendar train and completes a cycle in about 29.5 days. A static moon printed on a disc that never advances, or a day and night disc relabeled as a moon phase, is the fastest tell that you are looking at a counterfeit.
Parameter bands
- Case diameter: roughly 33 mm to 41 mm across the line, dress sized rather than sport sized
- Case thickness: slim, generally under 11 mm
- Case metal: yellow, white, or rose gold, and platinum. Not steel
- Lunar cycle: about 29.5 days, advancing with the date
- Water resistance: modest, so treat it as splash resistant and keep it away from swimming
Pitfalls
- Listings that show catalog photos only and never a photo of the actual caseback and movement
- Prices far below the going rate for the reference in that metal and condition
- Sellers who resist escrow, an independent authentication, or a third party inspection period
- Missing box, papers, or service history on a watch at this level
- Faint or misaligned hallmarks, fuzzy dial printing, and a moon aperture that looks painted rather than mechanical
Budget for a service after purchase. A mechanical moon phase from any maker needs periodic maintenance, and a watch that has sat unworn for years will need it sooner.
FAQ
Is a super clone close enough to the real thing?
No, and it is not a lawful purchase either. The legal exposure and the resale value of zero make it a bad trade on its own terms.
Vintage or modern?
Vintage examples carry more character and more risk. Modern references are easier to authenticate and easier to service. Either way, condition and provenance drive value more than the year.
What paperwork matters most?
Original purchase documents, service records from the brand, and a clear history of ownership. Papers confirm the reference and the metal, which is the first thing an appraiser checks.