Casio EF-500D / EF-500L Manual — Module 2711

One owner's manual PDF for the Casio module 2711 in English. Casio fitted it in 6 models, including the EF-500D and EF-500L — the full list is below. Casio's spec sheet lists one SR927W, with 2 years of battery life and accuracy within ±20 seconds a month; the module first shipped in Mar 2004.