Casio G-3001 / G-3011 Manual — Module 2454

One owner's manual PDF for the Casio module 2454 in English. Casio fitted it in 4 models, including the G-3001 and G-3011 — the full list is below. Casio's spec sheet lists one CR2016, with 2 years of battery life and accuracy within ±15 seconds a month; the module first shipped in Nov 2001.