Tag Heuer Formula 1 Automatic Chronograph Mens Watch CAU2010.BA0873

Great, would've like a certificate of authenticity. Nice watch

I ordered this watch where the model number states CAU2010.BA0873, when I received the watch - I noticed a few odd things. I own quite a few tag heuer watches and the box this came in was different and the box lining was white. Every tag heuer watch I have has a black lining. When I looked at the watch vs the picture, I noticed the face was slightly different. Also the model number on the back of the watch didn't match - it states CAU21.EAU1423. When I googled it, no such model shows up