Bulova Precisionist caliber P-102 is indeed an amazing achievement and the sweep is TWICE as smooth as a Rolex 3135 etc. 16 beats/sec! Even better it is rated +/_ 10 sec PER YEAR and zero maintenance ( except a $4 battery every 3 years). Why anyone keeps wasting money getting the Chinese movements cleaned/calibrated or even Frankening them with Gen parts is just silly. Precisionist is like the Tesla EV compared to a Stanly Steamer. I know this is blasphemy in this mechanical world but the only absolute is change. I have installed three of them so far and it is frankly LIBERATING. I have one in my 2000 GEN DJ and a couple in Rep Sub. I sold the Gen 3135 movement on ebay for $3800 probably to some Rep modder :-).