The short answer
No Breguet watch is called the Duomeetre, and Breguet has never sold a Duomètre moon phase. Duomètre is a Jaeger-LeCoultre collection name. Breguet's moon phase watches sit in the Classique line, and the 7337 is the reference most people picture when they think of one. So a listing that says "Breguet duomeetre moon phase" is usually a replica of a Classique moon phase wearing the wrong label. Sometimes the seller copied another listing. Sometimes the seller simply does not know the brand. Read the page with that in mind and most of the confusion falls away.
discounted duomeetre moon phase
What the original looks like
Breguet Classique moon phase watches are dress watches, generally 39mm or under, in rose or white gold. The dial is silvered and engine-turned, which means the pattern is cut into the metal rather than printed on top of it. The moon aperture sits at 12 o'clock on several references and pairs with a date, a day, or a power reserve depending on the model. Behind the curved window is a small disc that advances through a 29.5 day cycle.
The details that matter are tiny. Look at the edge of the aperture, the shape of the moon and stars, the grain of the guilloché, and the way blued steel hands catch light. Breguet hands have a hollow eccentric tip, and the printed minute track is fine enough that it nearly disappears at arm's length.
High-Quality Fake Duomètre Moon Phase: The Ultimate Guide
The mechanical part
A true moon phase runs on a 59-tooth wheel, which is why it drifts about one day every two and a half years. A day and night disc looks similar at a glance but flips every 24 hours. If the moon in the window changes shape between morning and evening, you are looking at a day and night indicator, not a moon phase. That one test separates a lot of cheap replicas from better ones.
discounted duomeetre moon phase
What decent replicas get right
- Case proportions, lug shape and crown size, at least in photos
- Dial layout: aperture position, subdial placement, text spacing
- Strap and buckle fit, often the first thing anyone notices on the wrist
- Weight in steel or plated gold, though rarely the heft of solid gold
Where they fall apart
- Guilloché that is stamped or laser-etched and looks flat under raking light
- Moon discs printed on foil with crude stars, or a sticker that lifts
- A 24-hour day and night disc sold as a moon phase
- Caseback engraving with the wrong font, odd serial patterns, or typos
- Rotors stamped "Swiss made" over a Chinese movement
- Moon phase correctors that do not move the disc at all
How I would check one in person
- Advance the hands past midnight and watch the aperture. It should step once per day, not sweep.
- Tilt the dial. Real guilloché throws light in bands. Printed texture does not.
- Check the moon disc through a loupe. Sharp stars are a good sign, blurry dots are not.
- Set the moon phase with the corrector, wait a day, and see if it moved.
- Turn the watch over. Compare the engraving to photos of the real reference, not to other replicas.
Legal and practical notes in the US
Owning a replica is not the problem. Importing one is. US Customs and Border Protection can seize counterfeit goods at the border, and selling a counterfeit watch as genuine exposes you to trademark liability under 19 U.S.C. 1526. If a seller promises "guaranteed customs clearance," treat that as a warning, not a feature. Expect no warranty, no service from Breguet, and no resale value. A replica is a costume piece and should be priced like one.
Bottom line
If you want the Breguet moon phase look, you are shopping for a Classique replica, not a "duomeetre." Judge the moon aperture first, the dial texture second, and the branding last. Those three checks tell you more than any seller's claim about factory or grade.