Quote Originally Posted by Ruggertech View Post
I haven't owned a San Martin but have owned several nh35 powered Chinese watches (from companies half or even a third of the price of San Martin) and the timekeeping on all of them has been within a couple of seconds a day. Far better than a typical Seiko. Either these companies regulate the movements carefully, which seems unlikely or Seiko send out their unbranded nh movements better set up than the branded ones they put in their own watches.
Same experience with Nh movements...never had a Seiko for comparison purposes, though bought my Dad one.