Short answer
A fake Cartier Rotonde 4244 is a counterfeit copy of a Cartier Rotonde de Cartier. The digits 4244 are a case-back number, not a model name. Cartier catalog references start with W. Genuine Rotonde de Cartier watches use in-house automatic calibers and sapphire crystals on both sides. Copies use quartz modules or low-grade automatics and sell for $40 to $300.
What 4244 refers to
Cartier stamps two numbers on the back of many watches: a model reference that starts with W, and a shorter case number. Listings use 4244 as that shorter number. Cartier does not publish a public list that maps 4244 to one model, so the number alone confirms nothing. A listing that shows 4244 and no W reference is unverified.
Case, crystal, and crown
The Rotonde de Cartier is a round dress watch. The 42 mm version measures about 42 mm across and about 9.5 mm thick. Cases come in steel, rose gold, yellow gold, and white gold. The front crystal is sapphire, and most versions have a sapphire case back.
The crown is fluted and set with a cabochon. Cartier uses blue sapphire or a synthetic spinel. On copies the cabochon is glass or plastic, and the crown teeth are coarser.
Movement
Cartier caliber 1904-PS MC is the automatic movement in the Rotonde de Cartier 42 mm. Specs: 27 jewels, 28,800 vibrations per hour (4 Hz), 48-hour power reserve, 288 parts. A genuine movement shows Geneva stripes, circular graining, and a signed rotor. Copies carry a quartz module or a generic automatic that runs at 21,600 vph. A seconds hand that jumps one step per second is a quartz sign. The 1904-PS MC beats 8 times per second, so the hand sweeps.
Dial and hands
Genuine dials use applied Roman numerals, not printed ones. Under a loupe, applied markers cast a shadow and sit above the dial surface. The hands are blued steel swords with polished bevels. The minute track has sharp printed edges. Dial text reads CARTIER, the model line, and SWISS MADE at the bottom. Font errors show up on copies: wrong serif shape on the R, wide letter spacing, or a comma in place of an apostrophe. Cartier hides a secret signature inside one Roman numeral on some models. Not every Rotonde has one, so absence proves nothing. A sloppy version of the mark is a tell.
Case back, serial, and papers
Genuine case backs carry deep engraving with even lines. Copies show shallow, fuzzy engraving, wrong font weight, or spelling errors. Real watches have one serial number each. Copy sellers reuse a small set of serials, so a search on the number returns many listings. A real watch ships with a warranty card that carries the reference and serial, plus a Cartier box. Those items can be faked. Call a Cartier boutique or an authorized dealer with the reference and serial, or send the watch to Cartier for a service quote. Cartier will not service counterfeits.
Weight and materials
A steel Rotonde de Cartier 42 mm on a leather strap weighs about 80 to 100 grams. Copies use thin cases and plated brass or zinc alloys. They feel light and warm up fast in the hand. Skip acid tests and magnet tests, which damage watches. Use a scale and a caliper instead, and compare the numbers to the published spec sheet.
Price and legal signals
A used steel Rotonde de Cartier automatic sells for about $4,000 to $9,000, based on age and metal. Gold versions run higher. Listings at $60 to $300 are counterfeit. In the US, trafficking in counterfeit goods is a federal crime under 18 U.S.C. § 2320. U.S. Customs and Border Protection seizes counterfeit watches at import, and buyers can lose both the watch and the money.
Five-minute check
- Time the seconds hand. One jump per second means quartz.
- Look at the Roman numerals with a loupe. Applied markers cast a shadow; printed ones do not.
- Measure case diameter and thickness with a caliper and compare to the spec.
- Search the case-back serial number. A shared serial means a copy.
- Ask for the W-prefix reference, the warranty card, and service records.
What is not known
Cartier does not publish a database of case-back numbers. No public source confirms that 4244 maps to one Rotonde de Cartier model. Without the W reference and the paperwork, the number is not proof of anything.