Late version tri-compax. Father in-law has the same one.
Hi and welcome.
What is your question? This watch looks good to me, although two of your sub hands have been painted white.
documented serial numbers may stop but I know of serial numbers up to 2.9 million and higher (not documented on existing serial number range) which is up to early seventies. Just lack of updates, nothing more ...
If that's any comfort, the company that has the best records and best historians ie Longines always refuses as a matter of principle to disclose production numbers of any models.
I suspect that may be because they don't want people to comment or speculate on any of their marketing strategies at any given time.
Does Omega have the same policy, by the way? That would be interesting.
