Hewlett-Packard HP-01 Calculator Watch

Resources

Wiki
panamatic.de – repair kits, instructions
bytecollector.com – another set of instructions
Crazy Watches
led-forever.com

Internals

Board

The rear pictures show the board with a damaged trimmer capacitor and with a replacement installed.

Display

Description of the pins and how to test the display are available here (page 9).

Buzzer and Battery Fittings

Reassembly

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