Dan S
·Not according to them. They claim that 100% of their watches test between -5 secs to +10 when they go up for sale. They told me they buy watches with small problems and make them function “like new,” before they sell them.
And so they push the regulator around enough to get it running reasonably well in one position, basically a meaningless claim/guarantee. It's just a little game that they (and many other high-volume dealers/resellers) play with every watch. They are just taking their chances that the watch will run well enough that the buyer won't want to bother returning it.
It's not going to be any different buying from a different seller, unless you are absolutely sure it has been properly serviced.