This document describes the usage and precautions of CASIO watches model 2615 and 3015. The main features include the use of solar-powered batteries and power-saving functions.
This manual provides detailed instructions for the Casio 2615 and 3015 devices, covering basic precautions, component description, and how to use the timer, phone‑memo, and world‑time functions. It also describes the automatic illumination and power‑saving features, as well as safety warnings for proper handling.
Charging information, battery‑level indicators, and step‑by‑step procedures for setting dates, times, and alarms are included. The guide also contains tables for light intensity versus charging time and a city‑code table for the world‑time function. This manual is written in Japanese.