I love vintage watches, but they can really eat up the budget with service and don't seem to sell for as much as you'd expect.
I think that really depends upon the particulars of a given vintage watch and exercising prudent judgment when purchasing. Speaking strictly about Omega vintage watches, you're unlikely to lose money over a longer term if you purchase collectible Speedmaster Professionals in good condition at fair value. I think the same can be said for some Constellations with pie pan dials, some Seamaster models with special dials, some cursive Geneve models, Rancheros and some military models as well.
I fitted my Connie with a BOR bracelet and I love it. Despite the end links (70) which are a little bit too long for the lugs the bracelet is very comfortable. I'm still looking for 512 end links 😀
My apologies if I'm misunderstanding this post, but 512 endlinks will not fit that bracelet. They are for the 5-row BoR (1036, 1502, etc), not the 7-row. And their curved shape isn't really for those lugs anyway.
I really prefer vintage watches as a complete 1964 Speedmaster weighs less than the bracelet of a modern-day Speedmaster.
Favorite Omega Seamaster is the big crown Seamaster 60, great looking " little " watch...
Can't wait to see some new books on vintage Omega models...