Introduction
This manual provides essential instructions for the proper setup, operation, and maintenance of your Citizen Eco-Drive Promaster Skyhawk A-T Watch, model JY8148-08L. Please read this guide thoroughly to ensure optimal performance and longevity of your timepiece.
The Citizen Eco-Drive Promaster Skyhawk A-T Watch, featuring a blue leather strap and a detailed blue dial.
Setup
Initial Charging
Your Eco-Drive watch is powered by light. Before initial use, expose the watch dial to bright light (natural or artificial) for several hours to ensure a full charge. Avoid placing the watch in direct sunlight for extended periods in hot environments to prevent overheating.
Time Setting (Atomic Timekeeping)
The Skyhawk A-T features atomic timekeeping, which automatically synchronizes the watch with atomic clocks via radio signals. For optimal reception, place the watch near a window at night. The watch will attempt to receive the time signal automatically. If manual synchronization is required or preferred:
- Refer to the detailed instructions in the full user manual for your specific module (JY8148-08L) on how to manually initiate time signal reception.
- Ensure your home city is correctly set to allow for accurate time zone adjustments.
Setting World Time Zones
This watch allows you to display time for various world cities. Consult the comprehensive manual for instructions on how to select and display different time zones using the watch's pushers and crown.
Operating Your Watch
Understanding the Controls
Side view of the watch, highlighting the crown and pushers used for various functions.
Your Skyhawk A-T watch features a crown and multiple pushers for accessing its various functions. Each control serves a specific purpose depending on the mode selected.
- Crown: Typically used for mode selection, manual time/date adjustments, and setting specific functions.
- Pushers: Used to start/stop chronographs, set alarms, switch displays, and initiate radio signal reception.
Key Functions
- Time/Calendar: Displays current time, day, and date. The perpetual calendar automatically adjusts for month lengths and leap years.
- Chronograph: Measures elapsed time with precision.
- World Time: Displays the current time in 43 cities worldwide.
- Alarms: Features multiple alarm settings.
- Countdown Timer: A programmable timer for specific durations.
- Slide Rule Bezel: The rotating bezel can be used for various calculations, such as fuel consumption, speed, and conversion of units. Detailed instructions for using the slide rule are available in the full manual.
Maintenance
Eco-Drive Charging
To maintain optimal performance, ensure your watch receives regular exposure to light. If the watch stops or the low power indicator activates, place it under bright light until fully charged. Avoid prolonged storage in dark places.
Water Resistance
This watch is water resistant to 200 meters (20 BAR). It is suitable for swimming, showering, and snorkeling. Do not operate the crown or pushers while the watch is wet or submerged in water, as this can compromise the water resistance.
Cleaning
Wipe the watch case and crystal with a soft, dry cloth. For the leather strap, use a slightly damp cloth and mild soap if necessary, then wipe dry. Avoid harsh chemicals or abrasive materials.
Leather Strap Care
Leather straps can be affected by moisture, sweat, and direct sunlight. Clean and dry the strap regularly. Avoid prolonged exposure to water to prevent damage and extend its lifespan.
Troubleshooting
Watch Not Keeping Accurate Time
- Insufficient Charge: Ensure the watch is fully charged by exposing it to bright light. A low power reserve can affect timekeeping and signal reception.
- Radio Signal Reception: Verify that the watch is in an area with good radio signal reception, especially during nighttime hours when signals are strongest. Avoid placing it near electronic devices that may cause interference.
- Home City Setting: Confirm that your home city is correctly set, as this impacts the automatic time zone adjustment.
Watch Stops Operating
If the watch stops, it is likely due to insufficient charge. Place the watch under bright light for an extended period (several hours to a full day) to fully recharge it. If the issue persists after adequate charging, contact Citizen customer service.
Buttons/Crown Not Responding
Ensure the crown is pushed in or screwed down (if applicable) to its normal operating position. If the watch is wet, allow it to dry completely before operating controls. If the problem continues, professional service may be required.
Specifications
The watch's case back, displaying the model number and water resistance rating.
| Feature | Detail |
|---|---|
| Model Number | JY8148-08L |
| Movement Type | Eco-Drive (Light Powered) |
| Display Type | Analog-Digital |
| Case Material | Stainless Steel |
| Case Diameter | 46 Millimeters |
| Case Thickness | 14 Millimeters |
| Crystal Material | Sapphire Crystal |
| Band Material | Leather |
| Band Width | 22 Millimeters |
| Water Resistance Depth | 200 Meters (20 BAR) |
| Key Features | Atomic Timekeeping, World Time, Chronograph, Perpetual Calendar, Slide Rule Bezel |
The Citizen Eco-Drive Promaster Skyhawk A-T Watch worn on a wrist, showcasing its design.
Warranty & Support
Warranty Information
Your Citizen Eco-Drive Promaster Skyhawk A-T Watch comes with a Limited Warranty. For specific details regarding coverage, duration, and terms, please refer to the warranty card included with your purchase or visit the official Citizen website. Retain your proof of purchase for warranty claims.
Customer Support
For further assistance, technical support, or service inquiries, please contact Citizen customer service or visit their official website. You can typically find contact information and service center locations on the Citizen website or in the documentation provided with your watch.
Official Citizen Website: www.citizenwatch.com
