HP Forums

I have a HP-1 watch and want to find out the spec's for the batteries. Can anyone help?

um, you went here right? www.hpmuseum.org/hp01.htm

enjoy your watch, quite the uber-gadget with plenty of nerd appeal.

I believe it would take 3 SR-44 aka LR-44, you can get them a a kmart watch dept.

-ned