Casio BG-810 / BG-810LV Manual — Module 3164

One owner's manual PDF for the Casio module 3164 in English. Casio fitted it in 4 models, including the BG-810 and BG-810LV — the full list is below. Casio's spec sheet lists one CR1616, with 2 years of battery life and accuracy within ±30 seconds a month; the module first shipped in Oct 2008.