I purchased what I thought to be a genuine Cartier blue ballon watch from the Canary Wharf London branch. The watch was sold to me in a Cartier box with the Cartier booklet and certificate which is stamped with the authorised Cartier dealer. I was informed this was a new watch which they had just come in. The watch kept stopping so I brought back to the Canary Wharf store and I was informed I had not wound the watch enough and assured this was the issue. Whilst wearing the watch a screw fell out and I again brought the watch back to the shop. They informed me that they would send it to there watchmakers to have the screw replaced. I emailed as after two weeks heard nothing and was informed they are sending it to Cartier in Switzerland and this will take up to six weeks. Six weeks later I emailed again and was informed the watch has been found to have fake parts in it and would I like a replacement or as I am within my guarantee have my money back. I spoke with the manager and informed her of my concerns of the company selling a fake watch and had the screw not fallen out I would have not been aware and asked how this watch was not picked up on. The manager informed me not all watches go through there full checks so, when The manager asked if I would would like a replacement I said no would you want a replacement when your sold a fake watch and she said no She wouldn’t. please be aware if you purchase anything to have it thoroughly checked.