Quick Answer
Cartier does not sell a watch called the Tank 2083. The number 2083 is a case-back or catalog reference stamped on vintage Must de Cartier Tank quartz models sold from the 1970s through the 1990s. That era used thin plated cases, printed dials, and simple quartz movements, which makes it one of the most copied Cartier families on the secondary market. To authenticate one, work in a fixed order: case metal and plating, dial printing, crown cabochon, case-back engraving, movement, then paperwork.
What the 2083 Reference Covers
Must de Cartier Tank watches from this period came in two main case constructions. The vermeil version used a sterling silver case with heavy gold plating, usually marked with a silver purity stamp and a plating thickness stamp. The lower-cost version used a gold-plated brass case with no silver stamp. Both had a rectangular Tank profile, a mineral crystal, and a battery quartz movement.
Because the cases were plated rather than solid gold, wear and replating are normal on real examples. That also gives counterfeiters an opening, since a plated case is cheap to copy. The dial, crown, and stamps are where real and fake examples separate.
Before You Start
- Jeweler's loupe at 10x, or a phone macro lens
- Digital scale accurate to 0.1 gram
- Digital calipers
- Case-back wrench or a small flat screwdriver, only if the watch belongs to you
- Reference photos of a documented example of the same reference
How to Authenticate a Cartier Tank 2083 in 10 Steps
- Measure the case length, width, and thickness with calipers.
- Compare those numbers against the documented dimensions for the exact reference on the case back.
- Weigh the watch on the digital scale and note the result in grams.
- Inspect the case flanks with the loupe for plating color, edge thickness, and lug shape.
- Read the dial text under magnification and check letterform shape, spacing, and ink density.
- Examine the crown and confirm the cabochon material, color, and seat.
- Study the case-back engraving for stamp depth, font, and placement.
- Test the crystal for scratching and check whether it sits flush with the bezel.
- Open the case back and identify the movement, its markings, and the movement holder.
- Compare the serial and reference numbers on the case back with any service record or receipt you have.
What Each Check Tells You
Case and Plating
Vermeil cases carry a silver stamp and a plating thickness stamp. Fakes often skip both, or stamp them in the wrong place with shallow, laser-cut lettering. Real plating on a worn watch shows brass or silver at the high points and smooth edges. Fake plating tends to flake in sheets or look unnaturally orange.
Dial Printing
Original dials have crisp serif letterforms with even stroke weight, and the printed minute track lines meet the chapter ring without bleeding. Counterfeit dials show thick or blurred letters, uneven spacing between words, and a minute track that drifts off center. On a printed Roman numeral dial, the numeral strokes should be uniform in width.
Crown and Cabochon
The crown on a real Tank is a faceted or ridged shape with a smooth blue synthetic spinel set flush. Fake crowns use glass or plastic that reads purple in daylight, sits high in the setting, or has visible glue at the base.
Case-Back Engraving
Factory engraving is cut into the metal with visible depth and slightly beveled edges. Laser-etched fakes look flat, gray, or dotted under magnification. Reference numbers, serial numbers, and metal stamps should sit in the same positions as a documented example.
Movement
Period quartz movements are marked with the maker's name and caliber. A blank movement with no markings, a plastic movement ring, or a battery held with tape points to a counterfeit. Hands that scrape the dial or stop at the same position each hour also point to a copy.
Red Flags
- Seller avoids clear photos of the case back and crown
- Price far below the going rate for the reference
- No serial number, or a serial number that repeats across listings
- Dial text with wrong fonts, wrong spacing, or a fuzzy minute track
- Cabochon that is purple, milky, or glued above the crown surface
- Case back with no metal stamp on a claimed vermeil example
- Box or paperwork printed on the wrong stock with misspelled model names
If the Watch Fails
Stop the transaction and keep the listing photos, messages, and payment record. Report the sale to the platform and to the card issuer or payment processor. In the United States, counterfeit goods sold online can be reported to the FBI Internet Crime Complaint Center. If you already own the watch, a Cartier boutique or an independent watchmaker can confirm the movement and case in person, and that written opinion is useful in a dispute.