Top pick: a 40 mm stainless-steel Villeret-style replica with a working day, date, month, and moon phase display, a movement the seller can name, and recessed correctors that match the genuine layout. Judge every candidate on five things: calendar layout, moon phase function, movement base, case and dial finishing, and how the correctors feel. The genuine reference is a complete calendar, not an annual calendar, so the replica should behave the same way when you set it.
What a complete calendar moon phase actually does
Blancpain's Villeret Complete Calendar Moonphase shows day and month in twin apertures at 12 o'clock, the date with a blued serpentine hand, and the moon phase at 6 o'clock. The genuine watch uses Caliber 6654 in a 40 mm case. A complete calendar tracks the day, date, and month but does not know which months have 30 days. You adjust it after February, April, June, September, and November. If a seller calls the watch an annual calendar, the description is wrong.
- Pros: familiar layout, useful daily information, moon phase adds visual depth.
- Cons: monthly correction, more settings to get wrong, more parts to fail.
Movement check is the real dividing line
Ask which base caliber the replica uses and whether the calendar module is custom or adapted. Replica movements in this category often use a 7751-family base or a custom module, and the layout can drift from the genuine 6654. A clone or modified movement can work well, but parts and service are not universal. A known base caliber makes future repair easier, and it tells you whether the calendar will set in the same order as the genuine.
blancpain moon phase replica 6654
- Pros of a named, common base: easier service, more predictable parts, clearer setting logic.
- Cons: thickness penalty, noisy rotor, date change not instant, moon phase may be simplified.
Moon phase: true lunar cycle or dressed-up day/night
A real moon phase advances once per day and completes a cycle in about 29.53 days. Many moon phase discs use 59 teeth and two moons, which gives a 29.5-day cycle. Cheap replicas sometimes fit a 24-hour day/night disc and call it a moon phase. Test by setting the moon to full and checking whether it moves at midnight, then ask for the disc tooth count. If the seller cannot answer, treat the moon phase as decorative.
Replica Blancpain Moon Phase for Sale: A Buyer's Guide
- Pros of a correct 59-tooth disc: realistic motion, correct moon phase aperture, better match to the genuine.
- Cons: fragile setting, easy to damage with the corrector, service is specialized.
Correctors, setting order, and daily use
The genuine uses recessed correctors on the case side. On a replica, press each corrector with a plastic tool, never a paper clip. Set the day and month first, then the date, then the moon phase. Avoid changing the calendar between 9 p.m. and 3 a.m. because the mechanism is engaged. Correctors should travel smoothly and spring back. A mushy or grinding corrector is a reason to pass.
- Pros: corrector layout matches the genuine, no extra tools on the wrist, clean case sides.
- Cons: easy to lose the tool, seals can be compromised, wrong setting order can jam the calendar.
Case, dial, and finishing checks
The target is a 40 mm case with a thin profile, a stepped bezel, and a mix of brushed and polished surfaces. Check the dial printing under magnification: the brand name, the Complete Calendar text, and the aperture frames should be crisp. Applied indices should sit flat. The moon phase disc should be printed, not a sticker. On the caseback, the rotor engraving and movement finishing are secondary, but a badly finished movement is a sign of a cheap build.
- Pros: a well-finished case reads correctly on the wrist; a clean dial is more convincing than a decorated caseback.
- Cons: replica dial printing often fails at the apertures; thick cases and deep engravings are common tells.
Use-case recommendation
Buy this replica if you want the look and function of a complete calendar moon phase without the cost of the genuine, and you accept monthly correction. Choose a stainless-steel model on a leather strap for office wear and evening use. Skip it if you need a grab-and-go watch or if you will not use the correctors. A simpler annual calendar or a time-only dress watch is easier to live with. For a first replica, pick the version with the movement the seller can document, even if the finishing is one step below the best cosmetic build.