New to me President Day-Date 1803

1556 Diamond Dial, bark bezel, serial number dates to 1973. I sent it off to my watchmaker for service. He responded that the service was complete with a new mainspring but the date mechanism was balky. He wound up getting a NOS date wheel that fixed the issue. New gaskets, replacement crystal and out it shipped. I received it midday Friday. I put a strap on it and set it to my time source. Saturday morning I was impressed enough with the timekeeping to wear it for a while (it's going to my son Thanksgiving) and record some timing. Here's what I've recorded so far:
11/14 - received, set to time source, overnight Dial Up
11/15 - exact, overnight DU
11/16 - -1, overnight CU
11/17 - -1, overnight CD
11/18 - exact, overnight DD
11/19 - +1
I just sent these figures to my watchmaker and thanked him profusely!
Thanks for looking, Fulton8or