Sounds like a classic case of "A7750-itis" These movements are often sold in atrocious condition, unoiled, and filthy... requiring immediate servicing in order to run properly....
IMNSFHO, a new watch should be able to function properly without needing to be serviced for at least a year or more...Rep or Gen!!!
The common reply on the rep fora has been, :" once you get it serviced, it'll run fine" I call BS on that!!!...Why should we have to spend $150.00+ to get a NEW watch running right...???
I have bought DOZENS of cheap A21j watches over the years, and have never had a problem with one within the first year of ownership....Why should we accept "junk" in our 7750 purchases...???
As long as we continue to accept this [censored], the dealers will continue to dish it out!!!