Hi guys
Cartier isn't a brand I have dealt with that much to be honest. This strap came on a genuine Cartier (a 14kt 70s Concord) but I'm not really sure how to authenticate an Cartier leather strap.

The strap is soft and seem a like good quality leather, the keepers are leather too not plastic like you often see in cheap ones and the fold over at the lug ends is stitched so I'm quite sure it's real but wanted to double check!

It's 17mm

Pics attached

Thanks in advance
HH