This question can probably be answered in one or two replies.
On a recent browse through The 'Bay, I noticed a strap I liked that the seller claimed was made by Cartier. The underside had Cartier printed into the band but there was no "genuine leather" mark like on the bands I'm accustomed to. I thought that all genuine leather bands required this imprint as proof of it's authenticity? Are there any notable watch manufacturers that use leather bands without this marking?