Short answer
A fake Cartier Tank 830107 is a counterfeit watch sold with a caseback stamped 830107. Cartier has not published a public reference list that confirms this number. The number appears in online listings, not in Cartier catalogs or service documents. A watch marked 830107 with the Cartier name is presumed counterfeit until a Cartier boutique or an independent watchmaker verifies it.
fake cartier tank 830107 auction
What the number 830107 refers to
Cartier reference formats changed across eras. Early Tank models used four to six digit numbers. Current models use combinations such as W5200003 or WGTA0. The number 830107 does not match the current format. Listings that use it describe a vintage-style Tank with a rectangular case, Roman numerals, and a blue sword-shaped hand. Case dimensions in those listings run from 23 mm to 31 mm.
Fake Cartier Tank 830107 Vintage Buying Guide
How counterfeits differ from genuine Tanks
- Caseback engraving: counterfeit stamps are shallow, uneven, or off-center. Genuine Cartier engraving is cut into the metal, not printed on it.
- Dial print: fake Roman numerals show thick strokes and uneven serifs. Genuine dials use a single hairline stroke.
- Movement: genuine Tank models use Cartier caliber 430 MC or quartz movements with signed rotors. Counterfeits use unbranded imported movements.
- Weight: a stainless steel counterfeit weighs less than a genuine steel Tank of the same case size.
- Serial and reference: counterfeit watches repeat the same serial number across batches.
Legal position in the United States
Cartier holds registered US trademarks for the name and the Tank case shape. Selling counterfeit goods violates 18 U.S.C. § 2320, which carries a prison term of up to 10 years for a first offense. 19 U.S.C. § 1526 lets US Customs and Border Protection seize and destroy counterfeit imports. Buyers face seizure of the item and loss of payment.
Fake Cartier Tank 830107 New: What the Code Means
Verification steps
- Ask for a caseback photo at 10x magnification.
- Request a movement photo that shows the caliber marking.
- Take the watch to a Cartier boutique or a watchmaker with WOSTEP or AWCI certification.
- Request a service record. Cartier archives service history by serial number.
Cartier does not publish authentication data for vintage references. No public database confirms 830107. Treat any listing that claims otherwise as unverified.