Casio Watch Instruction Manual: Modules 2879, 2889, 3091

Introduction

This document provides instructions for Casio watch modules 2879, 2889, and 3091. It covers essential information regarding water resistance, operational functions, and maintenance.

Water Resistance

Casio watches are designed to be water resistant, indicated by the WR (Water Resistant) marking. This resistance is based on ISO 2281 standards.

Water Resistance Levels:

• Level 1 (50M): Suitable for daily use, splashes, and rain.
• Level 2 (100M): Suitable for swimming and snorkeling.
• Level 3 (200M): Suitable for diving (not deep diving).
• Level 4 (300M): Suitable for higher-pressure water activities.

Diagram Description: A visual representation of water resistance levels, showing the suitability of each level for different water activities, from daily wear to diving.

Module Overview

This manual pertains to the following Casio watch modules:

• Module 2879
• Module 2889
• Module 3091

The watch features indicator symbols for various functions, typically labeled:

• [L]: Light function
• [SPL]: Split time (Stopwatch)
• [P]: Mode button
• [A]: Adjust button
• [C]: Command button

Diagram Description: A diagram showing the watch face with indicator symbols labeled 'L', 'SPL', 'P', 'A', and 'C', corresponding to different function buttons.

Basic Operations

Familiarize yourself with the primary buttons:

• [C]: Command button (often used to cycle through modes)
• [B]: Button (specific function varies by mode)
• [P]: Mode button
• [A]: Adjust button (used for setting values)
• [L]: Light button

Diagram Description: Diagrams illustrating button sequences for setting time, date, and other functions, indicating which button to press and in what order.

Timekeeping Mode:

To set the time:

1. Press the [P] button until the time display is shown.
2. Press and hold the [A] button to enter the setting mode. The seconds digits will flash.
3. Press the [C] button to advance to the next setting or to change the flashing digit.
4. Press the [B] button to decrease a flashing digit.
5. Press the [A] button to exit setting mode.

The watch supports both 12-hour and 24-hour formats. You can switch between them by pressing the [C] button when the hour digits are flashing during time setting.

Stopwatch Function

The stopwatch measures elapsed time up to 23 hours, 59 minutes, 59.99 seconds with a resolution of 1/100th of a second.

• Press the [P] button to select the stopwatch mode.
• Press the [C] button to start/stop the stopwatch.
• Press the [B] button to reset the stopwatch.
• To measure split times, press the [C] button to stop the main display, then press [B] to resume and clear the split time.

Alarm Function

The watch includes an alarm function.

1. Press the [P] button to select the alarm mode.
2. Press and hold the [A] button to set the alarm time.
3. Use the [C] and [B] buttons to adjust the hour and minute.
4. Press [A] to confirm the alarm time.
5. Press the [C] button to turn the alarm ON or OFF.

Battery Replacement

When the battery runs low, it may need replacement. The recommended battery type is typically a coin cell (e.g., ML2016 for some models). Consult a qualified technician for battery replacement to ensure water resistance is maintained.

Note: Battery life is approximately 10 years for some models.

General Care and Maintenance

• Avoid exposing the watch to extreme temperatures.
• Clean the watch with a soft, dry cloth.
• Do not operate buttons underwater.

Company Information

Manufacturer: CASIO COMPUTER CO., LTD.

Address: 1-6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan

For further assistance or inquiries, please refer to official Casio service centers.