This is my understanding:
What we consider as V1 is actually what APS has produced all this time. It has the running seconds and missing leap year indicator. APS only has one version of this watch and indeed all perpetual calendars made by APS have a running seconds.
”V2” is actually a lightly customised version made by a modding workshop on the mainland. It is not a “custom” build per say, but it is batch made to order. The hands are silver and not black, this watch, due to its nature has a tendency to make mirror polish hands look black even when they are silver.
Some TDs will be able to source you the modded version. The APS is $618 whilst the modded version costs around $750.