Owner manual / English
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Casio Module 526 Manual
One owner's manual PDF for the Casio module 526 in English. Casio's spec sheet lists one SR1116W, with 2 years of battery life and accuracy within ±30 seconds a month; the module first shipped in Jan 1988.
Module specs
Battery: SR1116W (silver-oxide)
Rated battery life: 2 years
Rated accuracy: ±30 sec/month
Casio service manual ref: S/M-271
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