Introduction
Thank you for choosing a Citizen Eco-Drive watch. This manual provides essential information for the proper setup, operation, and maintenance of your BU4005-56H analogue watch. Please read these instructions carefully to ensure optimal performance and longevity of your timepiece.
The Citizen BU4005-56H features Citizen's proprietary Eco-Drive technology, which harnesses light from any source (natural or artificial) and converts it into electrical energy to power the watch. This eliminates the need for battery replacement, offering a convenient and environmentally friendly timekeeping solution.
Setup
Initial Charging
Before first use, or if the watch has stopped, ensure it is fully charged. Expose the watch dial to bright light (e.g., sunlight or fluorescent lamp) for several hours. The charging time varies depending on the light source intensity. A fully charged Eco-Drive watch can run for an extended period in the dark.
Image: Eco-Drive Technology - How it works. This diagram shows the watch dial absorbing light, which is converted into electrical energy and stored in a power cell, eliminating the need for battery replacement.
Setting the Time and Date
- Pull out the crown: Gently pull the crown (the knob on the side of the watch) out to the second click position. The second hand will stop.
- Set the time: Rotate the crown to set the hour and minute hands. Ensure you set the correct AM/PM by observing the date change. If the date changes around midnight, it is set to AM.
- Push in the crown: Once the time is set, push the crown back into the normal position. The second hand will resume movement.
- Setting the Date: Pull the crown out to the first click position. Rotate the crown to adjust the date. Avoid setting the date between 9:00 PM and 1:00 AM, as this may interfere with the automatic date change mechanism. Push the crown back in when finished.
Image: Side view of the watch. This image highlights the crown, which is used for setting the time and date.
Operating Your Watch
Timekeeping
Your Citizen BU4005-56H watch is designed for accurate timekeeping. The second hand moves in one-second intervals. The watch also features a date display.
Water Resistance
This watch has a water resistance depth of 50 meters (5 ATM). This means it is suitable for everyday use and can withstand splashes, rain, and brief immersion in water. It is not suitable for swimming, diving, or showering with hot water, as steam can penetrate the seals.
Glow In The Dark Feature
The hands and/or markers on your watch are treated with a luminous material that glows in the dark after exposure to light. The intensity and duration of the glow depend on the exposure time and intensity of the light source.
Maintenance
Cleaning Your Watch
- Case and Crystal: Wipe with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and then dry thoroughly.
- Stainless Steel Band: Clean the metallic band with a soft brush and mild soapy water if necessary. Rinse thoroughly with clean water and dry completely to prevent water spots or corrosion.
Eco-Drive Charging Best Practices
- Regularly expose your watch to light to maintain a full charge.
- Avoid prolonged storage in dark places, as this can deplete the power reserve.
- Do not expose the watch to extremely high temperatures during charging (e.g., direct sunlight on a car dashboard), as this can damage internal components.
Troubleshooting
Watch Has Stopped or Keeps Incorrect Time
- Insufficient Charge: The most common reason for an Eco-Drive watch to stop is insufficient light exposure. Place the watch under bright light for several hours to fully charge it.
- Time/Date Not Set Correctly: Refer to the 'Setting the Time and Date' section to ensure the watch is set accurately.
- Crown Position: Ensure the crown is fully pushed in. If it is pulled out, the watch will not operate correctly.
Date Changes at Noon
This indicates that the AM/PM setting is incorrect. Advance the time by 12 hours (or rotate the hands past 12 o'clock once) to correct the AM/PM indication.
Specifications
| Feature | Detail |
|---|---|
| Model Number | BU4005-56H |
| Movement Type | Quartz (Eco-Drive) |
| Display Type | Analogue |
| Case Material | Stainless Steel |
| Case Diameter | 42 Millimetres |
| Case Thickness | 12 Millimetres |
| Band Material | Stainless Steel |
| Band Colour | Black |
| Band Width | 21 Millimetres |
| Dial Colour | Black |
| Crystal Material | Mineral |
| Water Resistance Depth | 50 Metres (5 ATM) |
| Item Weight | 380 g |
| Special Feature | Glow In The Dark |
Image: Rear view of the watch. This image displays the stainless steel case back and the push-button deployment clasp on the metallic strap.
Warranty and Support
Warranty Information
Your Citizen BU4005-56H watch comes with a 1 Year International Guarantee. Please refer to the warranty card included with your purchase for full terms and conditions. Keep your proof of purchase for warranty claims.
Customer Support
For any questions, service, or repair needs not covered in this manual, please contact Citizen customer support or visit an authorized Citizen service center. Contact information can typically be found on the official Citizen website or your warranty documentation.