A "replica Cartier Tank 2370" is a counterfeit watch sold under a seller code. Cartier has never published a Tank reference 2370. Genuine Tank references are four-digit numbers or W-prefix codes: 2540 for the Tank Louis Cartier, 3169 and 2743 for the Tank Solo, 2384 for the Tank Francaise, and formats such as W5200013 for steel Tank Solo quartz models. The number 2370 belongs to the seller, not to Cartier.
What "2370" labels in practice
Listings that use the 2370 code show a rectangular steel case in the Tank Solo or Tank Must shape. Common features: a white dial with Roman numerals, a minute track, sword hands, a cabochon crown, and a leather strap. Listed case sizes run from about 29 mm by 23 mm to 35 mm by 27 mm. Sellers use the code to track a batch of cases and dials from one factory. Two listings with the same code can ship different movements.
Parts on a typical unit
- Case: 316L stainless steel, 6 mm to 8 mm thick, polished
- Glass: mineral on low tiers, sapphire on higher tiers
- Movement: Chinese quartz, or a Miyota or Seiko quartz caliber on graded versions
- Dial: pad-printed numerals; genuine Tank dials are lacquered and use markers with tighter registration
- Strap: calf leather with a steel pin buckle or a deployant clasp
- Markings: "Cartier", "Swiss Made", a reference number, and a serial number engraved on the caseback
Differences from a genuine Tank
Cartier finishes Tank cases by hand. The polished and brushed planes meet at sharp edges. Replica cases show rounded edges and uneven polishing. Genuine Tanks use Cartier-serviced quartz or mechanical calibers. Replica modules come from third-party suppliers, so accuracy and service life vary.
Genuine dials hide a small "Cartier" word inside one numeral, part of the secret signature Cartier has used on Tank models since the early 20th century. Few replicas copy it. Caseback engraving on a genuine watch matches the movement and the service record held by Cartier. Cartier service centers refuse counterfeit watches.
Legal status in the US
Trafficking in counterfeit goods is a federal crime under 18 U.S.C. 2320. A first offense carries up to 10 years in prison; a second offense carries up to 20 years. US Customs and Border Protection can seize and destroy counterfeit watches at import, and personal use does not exempt a shipment from seizure. Trademark owners can sue under the Lanham Act, 15 U.S.C. 1114, and recover statutory damages under 15 U.S.C. 1117(c).
Resale and service
A replica Tank 2370 has no authentication record, no serial number tied to a maker, and no parts supply from Cartier or Richemont. Resale value tracks the used-parts market, not the Cartier market. A seller who passes a replica off as a genuine Cartier Tank commits fraud.
Alternatives without trademark exposure
Several independent brands sell rectangular watches under their own names. These use the same case shape idea, carry their own trademarks, and can be serviced.