HP01 Watch

[Geoff Quickfall]

No parts available on this ~50 year old watch.

The IC’s sealed internally in a ceramic sandwich with vias connecting the IC’s to the external world.

Three battery pads with gold traces which can be compromised by leaking or outgassing batteries.

There are a few external components; trimming capacitor, LED block, 784kHz quartz crystal, case back piezo contacts.

For a Panamatik replacement one needs to harvest the LED block, the keyboard insulator.

For a preliminary look (youtube) check out this presentation at HHC2016:

HP 01 Cricket

Panamatik will except your HP01 and remove the LED block (i think he still does this).

Geoff