Casio WVQ-121DE Manual — Modules 4317 / 4318

One owner's manual PDF for the Casio module 4317 in English. Casio fitted it in the WVQ-121DE. The same document also covers module 4318. For module 4317, Casio's spec sheet lists one CTL1025, with 5 months of battery life and accuracy within ±20 seconds a month; the module first shipped in Sep 2005.