As with many things vintage, eBay is the first place to look (and look and look). You might have to get an entire bracelet just to get extra links—if you can get the bracelet. You might try other Omega forums such as
www.omega.watchprosite.com. Ofrei.com usually has replacement bracelets, but they rarely (if ever) sell individual links. Patience and persistence will be necessary.
You might consider getting a different bracelet if the 1392/012 is not long enough. If you ever find extra links, you can put the original back on.
HTH
: I am the original owner of a stainless steel Omega Constellation,
: purchased around 1978. No longer have the box/links. The
: bracelet is stamped 1392/012. Have searched the internet and
: Omegas Sevice in NJ and all agree links are discontinued. Can
: anyone suggets a place to find these links or a current model
: link that is available and will fit as a substitute? Sincere
: Thanks! - Alan.