Owner manual / English
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Casio Module 510 Manual
Two owner's manual PDFs for the Casio module 510, each a different scan (English included). Casio's spec sheet lists two SR927W cells, with 2 years of battery life and accuracy within ±15 seconds a month; the module first shipped in Jan 1989.
Module specs
Battery: SR927W x2 (silver-oxide)
Rated battery life: 2 years
Rated accuracy: ±15 sec/month
Casio service manual ref: S/M-298
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