Citizen Eco-Drive Promaster Dive Watch CA0820-50X Instruction Manual

Introduction

This manual provides essential information for the proper use, care, and maintenance of your Citizen Eco-Drive Promaster Dive Watch, Model CA0820-50X. Please read these instructions carefully to ensure optimal performance and longevity of your timepiece.

Key Features and Operation

The Citizen Eco-Drive Promaster Dive Watch CA0820-50X is designed for durability and precision, featuring advanced Eco-Drive technology and dive-ready specifications.

• Eco-Drive Technology: This watch is powered by any light source, eliminating the need for battery replacement. Ensure the watch is regularly exposed to light for continuous operation.
• Chronograph Function: Features a 1/5 second chronograph capable of measuring up to 60 minutes. Refer to the detailed operating instructions for specific usage of the chronograph sub-dials and pushers.
• Time Display: Displays time in both 12-hour and 24-hour formats.
• Date Function: A date window is located at the 3 o'clock position.
• Unidirectional Bezel: The green bezel rotates in one direction, useful for tracking elapsed time during dives.
• Luminous Accents: Hands and markers are luminous for enhanced visibility in low-light conditions.
• Water Resistance: Water-resistant up to 200 meters (20 Bar), suitable for scuba diving. Ensure the crown is pushed in completely before exposure to water.

Side view of the Citizen Eco-Drive Promaster Dive Watch CA0820-50X, highlighting the green dial, unidirectional bezel, and chronograph pushers.

Rear view of the watch, displaying the stainless steel case back and the safety fold-over clasp of the bracelet.

Setup and Initial Charging

1. Initial Charge: Upon receiving your watch, expose it to bright light (natural sunlight is ideal) for several hours to ensure a full charge. Avoid placing it in direct sunlight for extended periods in extremely hot environments to prevent overheating.
2. Setting the Time: Pull the crown out to the time-setting position. Rotate the crown to set the hour and minute hands. Push the crown back in to start the watch.
3. Setting the Date: Pull the crown out to the date-setting position (usually one click out). Rotate the crown to adjust the date. Push the crown back in. Avoid setting the date between 9 PM and 3 AM to prevent damage to the movement.
4. Chronograph Reset: If the chronograph hands are not aligned to the 12 o'clock position, refer to the detailed movement guide (usually available on the Citizen website) for calibration instructions.

Maintenance

• Cleaning: Wipe the watch regularly with a soft, dry cloth. For water-resistant models, a damp cloth can be used, followed by drying.
• Water Exposure: After exposure to saltwater, rinse the watch with fresh water and dry thoroughly. Ensure the crown is always fully pushed in before water contact.
• Temperature: Avoid exposing the watch to extreme temperatures or sudden temperature changes.
• Magnetic Fields: Keep the watch away from strong magnetic fields to prevent affecting its accuracy.
• Servicing: For optimal performance, periodic inspection and servicing by an authorized Citizen service center are recommended.

Troubleshooting

• Watch Stops Running: If the watch stops, it may not be sufficiently charged. Expose it to bright light for several hours.
• Incorrect Time/Date: Refer to the "Setting the Time" and "Setting the Date" sections to re-adjust.
• Chronograph Hands Misaligned: Consult the full movement guide for your specific caliber (B612) on the official Citizen website for calibration steps.
• Water Inside Crystal: If condensation or water appears inside the crystal, immediately take the watch to an authorized service center.

Specifications

Warranty and Support

Your Citizen Eco-Drive watch is covered by a manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms and conditions, including warranty period and coverage details. For technical support, service, or to locate an authorized service center, please visit the official Citizen website or contact Citizen customer service.

The Citizen watch box, which typically contains the warranty information and instruction booklet.