Casio DW-9300GA / DW-9300J Manual — Module 1583

Three owner's manual PDFs for the Casio module 1583, each a different scan (English included). Casio fitted it in 4 models, including the DW-9300GA and DW-9300J — the full list is below. Casio's spec sheet lists one ML2020, with 5 months of battery life and accuracy within ±15 seconds a month; the module first shipped in Apr 1998.