The fake Rotonde Earth & Moon V4 is a fourth-generation replica of the Cartier Rotonde de Cartier Earth and Moon, a 47 mm tourbillon watch with an on-demand moon phase. The V4 label marks the revision most replica buyers treat as the current benchmark: a moving moon disc, a lapis lazuli style earth plate, and a movement decorated to imitate Cartier's in-house caliber 9440 MC. It is not a genuine high complication and it is not a six-figure watch, but the V4 is the version that gets the visible mechanics closest to the original.
Fake Rotonde Earth & Moon V10: What to Check Before You Buy
What changed between V1 and V4?
Early copies, from V1 through V3, leaned on printed dial work. The moon aperture was often static, the earth disc was lacquered plastic or a flat blue print, and the pusher at 4 o'clock did little more than click. The V4 moved to a layered aperture with a rotating disc behind it, so the moon phase can be advanced and pushed back on demand, matching the behavior described in mainstream coverage of the genuine reference.
Case proportion also tightened. Earlier batches ran thick and top-heavy, while the V4 sits closer to the genuine 47 mm by roughly 14 mm profile.
Does the moon phase on the V4 actually work?
Yes, on most V4 examples the pusher advances a disc that carries both the moon and the earth element, so the aperture alternates between them. The cycle is mechanical rather than programmatic, which means a small misalignment can appear after repeated use. Expect the phase to track roughly, not to the accuracy of a true astronomical moon phase.
Movement and finishing
- Most V4 builds use a decorated manual-wind or automatic base with a tourbillon cage or simulated cage at 6 o'clock.
- Bridges are shaped and engraved to echo the 9440 MC architecture, and the genuine movement runs 362 components across a tourbillon and moon mechanism.
- Finishing is cosmetic: Geneva stripes and perlage look convincing in photos, less so under a loupe.
Dial, earth disc, and finishing details
The best V4 dials use a deep blue stone-effect disc with natural-looking veining rather than a flat printed circle. Roman numerals, the railway track, and the blued steel style hands are usually crisp on top-tier builds and soft on budget ones. Check the aperture edge for burrs, since that is where cheap stamping shows first.
Case, size, and wearability
At 47 mm the Rotonde Earth and Moon is a large dress watch, and a replica that adds a millimeter of thickness feels noticeably heavier on the wrist. Lug shape matters as much as diameter, because the genuine case tapers into curved lugs. A V4 with straight, blocky lugs will look wrong next to the real thing.
What to check before you buy
- Ask for a video of the pusher moving the moon aperture, not just still photos.
- Confirm the stated case diameter and thickness with calipers if the seller can provide them.
- Check the hands for proper bluing versus painted blue, and the date or power reserve text for correct fonts.
- Request a close-up of the caseback engraving and any movement photo.
FAQ
How much does a fake Rotonde Earth & Moon V4 cost?
Prices generally land in the low hundreds to around one thousand US dollars, with the spread driven almost entirely by movement quality and dial materials. Anything far below that range usually means a printed moon aperture and a stalled disc.
Is the V4 worth buying over the V3?
For most buyers, yes. The working aperture and slimmer case are the two things people notice first, and those are exactly what the V4 fixes.
How do you spot a low-grade copy?
A painted moon that never moves, a flat blue disc with no depth, and a case that measures over 15 mm thick are the clearest tells. Soft engraving on the rotor is another sign of a budget tier build.