Short answer
Case number 4244 belongs to the Cartier Rotonde de Cartier line. The number is stamped on the case back of the round-case watch. Copies of the Rotonde exist. The first check is the movement. A genuine Rotonde carries a Cartier-signed caliber. Most copies use a generic automatic movement, often a Seagull or a decorated ETA clone, and that movement is visible through the case back. If the movement is not signed and not correct, the watch is not genuine.
What the 4244 case number means
Cartier does not publish a public reference list. The 4244 stamp is reported by owners as a case number for the Rotonde, not a full model reference. A full Cartier reference looks different, for example W1556227. A seller who quotes 4244 as the model name and nothing else is describing the case, not the watch.
Movement
The Rotonde has used several calibers across the line. Steel automatic versions have used caliber 049, an ETA 2892 base finished for Cartier. Chronograph versions use caliber 1904-CH MC. In-house high complications use MC calibers with visible finishing. Points to check through the display back:
- Rotor engraving. Genuine rotors carry Cartier script and the caliber number.
- Jewel count and layout. These must match the caliber Cartier lists for that reference.
- Finishing. Cotes de Geneve, circular graining, and blued screws appear on genuine pieces. Copies show rough edges and plating.
- Rotor noise. A loose, rattling rotor points to a low-cost movement.
Case, crown, and case back
- Crown. Cartier fits a cabochon in blue spinel or sapphire. Copies use glass or dyed plastic with a flat top.
- Case back engraving. Genuine stamps are crisp, even in depth, and match the case metal. Copies show shallow, uneven lettering.
- Serial and case numbers. The two numbers differ and appear on the case back and on the papers when papers exist.
- Weight and finish. Steel Rotonde cases have sharp lugs and even brushing. Copies show soft lug edges and mismatched polishing.
Dial and hands
Rotonde dials use Roman numerals, a chemin de fer minute track, and blued steel hands. Cartier has used a hidden signature inside the VII numeral on some dials. Copies miss the spacing, the serif shape, and the depth of the printing. Printed text on a copy sits on top of the dial. Genuine printing sits flush.
Price and legal status
Counterfeit prices are a small fraction of retail, and that gap is the main warning sign. In the United States, trafficking counterfeit goods is a federal crime under 18 U.S.C. 2320. Penalties reach 10 years for a first offense and 20 years for repeat offenses. U.S. Customs and Border Protection can seize and destroy counterfeit watches under 19 U.S.C. 1526. Cartier and its parent company can also sue sellers under the Lanham Act. A buyer who imports a counterfeit risks seizure of the item with no refund.
Verification
Cartier after-sales service can confirm a serial number and a service history. A service record with matching numbers is the strongest evidence. No document, photo, or box proves a watch is genuine on its own. If the movement cannot be checked, treat the watch as unverified.