Looking to buy a vintage Heuer strap and buckle for a fair price, to fit on my Heuer Autavia. I believe the size is 21mm, but im not sure. Thanks in advance.
Jan

 

Which model is it Jan? '60s tend to be 19 or 20mm, most '70s Autavias are 20mm, but the 11063 is 21mm from memory.
Best, Steve

ps I don't have a strap to offer, but it will help narrow down the search.