[New to the forum so please let me know if this should be somewhere else]
Wondering about an online sale: Private seller listed a 1961 Swiss made Concordia chronograph 38mm with a Valjoux 7734 movement. Serviced in the last year and runs perfectly. Listed at ~$550 CAD.
I have never heard of Concordia before and can't find any info on them. I know the movement is good but I'm afraid it might be a frankenwatch (not necessarily a bad thing).