This is an authentic vintage Cartier Tank watch strap that is in good used condition. Your watch strap is 17mm wide where it connects to your watch and it is 16mm wide where it connects to your buckle. Your longer strap piece is 9.5cm long and your shorter strap piece is 9cm long.

I have given you photos of your watch strap from every angle. Please use them to add to this description.

If you are not sure if this will fit your watch or if you have any other questions then message me. I'm here to help you.