Owner manual / German
Scanned images, not text-searchable
OLD WATCH SHOP
Casio Module 351 Manual
One owner's manual PDF for the Casio module 351 (German only). Casio's spec sheet lists one 317, with 2 years of battery life and accuracy within ±15 seconds a month; the module first shipped in Aug 1986.
Module specs
Battery: 317 (silver-oxide)
Rated battery life: 2 years
Rated accuracy: ±15 sec/month
Casio service manual ref: S/M-215
Open Casio battery finder