Casio G-200 / G-200D Manual — Module 2387

One owner's manual PDF for the Casio module 2387 in English. Casio fitted it in 4 models, including the G-200 and G-200D — the full list is below. Casio's spec sheet lists one CR2016, with 3 years of battery life and accuracy within ±15 seconds a month; the module first shipped in Sep 2001.