Some sellers offer the Cartier quartz model for sale and only state that the watch has a quartz movement, but fail to mention if it has a Cartier quartz movement. If the watch was registered by Cartier when it was sold or if it has been sent in to Cartier for service Cartier will be able to verify it is authentic, but be aware that if the watch was not originally sold in North America or was not registered when sold (fairly common) it can still be authentic. I've seen fakes with all the correct marks and a serial number, but that doesn't mean they are legitimate. I specialize in buying and selling Cartier watches. So I just wanted to know if it a fake before I put out the cash! I'm not even sure if I will get my answer from here, but it don't hurt to try :-) Thanks -N.T.S I want to buy a Cartier watch yes its online, I want to find out how can I find if its a fake? This person has givin me the serial NUMBERS so this makes me feel a little better BUT,you can never be to safe.