Casio CA-56 / LDF-40 Manual — Module 3208

Two owner's manual PDFs for the Casio module 3208, each a different scan (English included). Casio fitted it in 4 models, including the CA-56 and LDF-40 — the full list is below. Casio's spec sheet lists one CR2016, with 5 years of battery life and accuracy within ±15 seconds a month; the module first shipped in May 1984.