Hi. I bought an Omega Seamaster Automatic Chronometer at Tourneaus about 13 years ago. Until last year, i never had it serviced. It was serviced at/through Tourneau. After it was serviced, i got a call and went to pick it up. The watch was significantly lighter - about 1/3 less heavy if not more. when i picked up the watch the first thing i noticed was how light it was.
the lady at tourneau said that they sometimes use lighter replacement parts these days and maybe that was why.
i would like to know how i should look at this. is this anything to worry about or look further into? is there a place where i can send the watch to verify that it is what is was and should be?