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Casio A-155 / A-155W Manual — Module 587

One owner's manual PDF for the Casio module 587 in English. Casio fitted it in the A-155, A-155W, and F-77W. Casio's spec sheet lists one CR2016, with 7 years of battery life and accuracy within ±30 seconds a month; the module first shipped in Apr 1986.

Module details

Brand: Casio

PDF files: 1

Released: Apr 1986

Mapped models: 4

Module specs

Battery: CR2016 (lithium)

Rated battery life: 7 years

Rated accuracy: ±30 sec/month

Casio service manual ref: S/M-198

Open Casio battery finder

Owner manuals

Watch models using this module

ModelReleased
A-1551986
A-155W1986
F-77W1986
A-155W1989