I have bought a 1968 Ladymatic, 8mm lug width, with a 10 mm (!) Hirsch strap for my wife. I was lucky to find a nice unused 8mm Omega croc strap. I have the choice between the old and the newer buckle design. Which should I choose if I want the original buckle? My 1958 Connie has the old style buckle but I might think this watch came with the newer version. Any input is highly appreciated!