Owner manual / English
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Casio Module 1827 Manual
Two owner's manual PDFs for the Casio module 1827, each a different scan (English included). Casio's spec sheet lists one CR1616, with 2 years of battery life and accuracy within ±30 seconds a month; the module first shipped in Aug 1998.
Module specs
Battery: CR1616 (lithium)
Rated battery life: 2 years
Rated accuracy: ±30 sec/month
Casio service manual ref: S/M-612
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