Fake Cartier Rotonde 4000 is a seller listing term. Cartier does not make a watch called the Rotonde 4000. The digits work as a batch code, a shop catalog ID, or a price band. The watch in those listings copies the Rotonde de Cartier, a round dress watch with Roman numerals, a guilloche dial, blued sword hands, and a cabochon crown.

What the Rotonde de Cartier Is

Cartier sells the Rotonde de Cartier in steel and in gold. The 42mm steel case measures 42.0mm across, crown excluded. Cartier fits the in-house 1904-PS MC automatic: 27 jewels, 28,800 vibrations per hour, and a power reserve near 48 hours. Steel retail sits near $7,300. Gold models run above $15,000. Prices shift with year and metal.

What the 4000 Number Means

The digits match no Cartier reference format. Cartier numbers use letter groups such as W or CRW plus digits. Sellers use 4000 in three ways: a factory batch number, an in-shop catalog ID, or a price. In Chinese listings, 4000 means CNY 4,000, about $550 at current rates. Two sellers with the same 4000 code can ship different watches. Ask for photos of the unit you will receive.

Replica Tiers and Prices

  • Quartz, $60 to $120. Case size is close. The seconds hand ticks once per second.
  • Entry automatic, $150 to $300. Miyota 8215 or Seagull ST6, 21,600 vibrations per hour. Dial print is coarse.
  • Mid tier, $300 to $600. Miyota 9015 or Seagull ST2130, 28,800 vibrations per hour. Crown cabochon is synthetic spinel or glass.
  • Top tier, $600 to $1,200. Some units use a clone of the 1904-PS MC. Case dimensions land within 0.2mm of the genuine part.

Inspection Points

  1. Case diameter. Measure across the case at 3 and 9 o'clock, crown excluded.
  2. Crown. Cartier uses a blue synthetic spinel cabochon. Plastic and glass look flat under light.
  3. Dial. Roman numerals are stamped and filled. Edges stay sharp at 10x magnification.
  4. Hands. Blued sword hands. Paint on replicas flakes at the tip.
  5. Caseback. Reference and serial numbers are engraved into metal, not printed on a sticker.
  6. Weight. A steel Rotonde on leather runs 80 to 100 grams.
  7. Beat rate. A sweep of 8 steps per second means 28,800 vibrations per hour.

Legal Status in the US

Counterfeit watches infringe Cartier trademarks under the Lanham Act, 15 U.S.C. 1114. US Customs and Border Protection can seize shipments and destroy them. Import of one unit for personal use carries lower risk than resale. Resale of counterfeit goods is a federal offense with civil damages that scale with unit count.

What Remains Unknown

Factory names change. Batch quality varies between runs. No seller code points to a stable source. Specs published in one review do not carry over to another shop.