You can consult with Cartier in a Cartier shop, or by email or telephone. There is no Cartier serial number database online that you can use to search if your Cartier watch is fake. If serial numbers can be used to identify counterfeit goods, but it can also give Cartier more information such as production time, as well as to which retailer it was originally sold. Cartier keeps track of each timepiece that leaves their factory and keep track of the serial numbers that they carry. The serial number is like an identification number for the watch. Cartier uses serial numbers for its watches. All manufacturers use different serial number systems, but a serial number usually consists of a series of digits, sometimes also letters.Ĭartier is one of the most well-known jewelry and luxury brands in the world. The serial number is unique to the watch and can serve a number of purposes. The vast majority of luxury watches are equipped with a serial number.