Casio G-306X / G-540D Manual — Module 4314

One owner's manual PDF for the Casio module 4314 in English. Casio fitted it in 5 models, including the G-306X and G-540D — the full list is below. 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 Aug 2005.