Owner manual / English
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Casio Module 1398 Manual
Three owner's manual PDFs for the Casio module 1398, each a different scan (English included). Casio's spec sheet lists one SR616SW, with 2 years of battery life and accuracy within ±20 seconds a month.
Module specs
Battery: SR616SW (silver-oxide)
Rated battery life: 2 years
Rated accuracy: ±20 sec/month
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