Minor thing, but its a Heuer Autavia, not a Tag Heuer. The original company was called Heuer and yours is from the 70's before they became Tag Heuer. Its a nice looking watch, the pusher needs to be replaced and the bezel appears incorrect. Finding the missing parts could become a challenge. There are many competent watchmakers, If you are in the US- I would check with Craig with ChronoDeco, Jack at International Watch Works or Phillip at Watchmakers International. All are brilliant watchmakers, but highly unlikely any of them will have the parts you need. I believe Swiss Watches and More has the correct pusher, but it can be difficult to order. You can also watch eBay, they sometimes appear. Just have to be careful to get the correct version.

Servicing vintage Hauers can be a challenge as the parts are coveted and hard to source. Fortunately this is one of the more common of the vintage Heuers, so will be the easiest to find if you are patient.

: At lease that is what I think I have. Looking to make sure I have
: the right description and some sources who are reasonable,
: honest, do great work to restore my watch. I'm the original
: owner. I bought it in the 70's. I could send pictures. Any
: advice and direction would be helpful. Thanks in advance... Geof