Casio G-3000 / G-3010 Manual — Module 2453

One owner's manual PDF for the Casio module 2453 in English. Casio fitted it in 5 models, including the G-3000 and G-3010 — 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.