An original vintage Girard Perregaux Deep Diver 9108: The " Tiffany ".
For those who believed that Tiffany was the monopole of Patek and Rolex, here is the evidence that it is not the case.
Girard Perregaux made some double signatures watch, too.
Here is a nice Deep Diver Ref 9108 " Tiffany ".
Credit picture: Cars And Watches.