HP98035 Real Time clock and AC5954N clock chip

[CuriousMarc]

> 
> I wondered if it's actually a digtal watch chip (2.5V could have been a couple
> of mercury cells in series, LED watches were not uncommon back then).
> 
> In which case it would not normally have come in a 0.6" wide DIP. Perhaps
> normally it was a bare chip directly mounted on the watch circuit board or
> something.
> 
> The DIP version would be unusual, which is perhaps why we can't find data
> on it.
> 
> -tony

I think you are on to something. That would make perfect sense.
Marc