1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Seiko QXH066BLH Wall Clock. This elegant timepiece features an arched wooden case, a gold-tone pendulum, and dual chime options (Westminster and Whittington) with volume control and an automatic nighttime silencer. Please read these instructions carefully before using your clock to ensure proper function and longevity.

Image 1.1: The Seiko QXH066BLH Wall Clock displayed in a home environment.
2. Safety Information
- Handle the clock with care to prevent damage to the case or internal mechanisms.
- Ensure the clock is securely mounted on a sturdy wall to prevent falling.
- Keep batteries out of reach of children and pets. Dispose of used batteries responsibly.
- Do not expose the clock to extreme temperatures, direct sunlight, or high humidity.
- Avoid disassembling the clock. Refer servicing to qualified personnel.
3. Package Contents
Verify that all components are present in the packaging:
- Seiko QXH066BLH Wall Clock unit
- Pendulum
- 1 'C' size battery
- Wall mounting hardware (screws, flat panel, hook)
- Instruction Manual (this document)
4. Setup
4.1. Battery Installation
- Carefully open the back cover of the clock.
- Insert one 'C' size battery into the designated battery compartment, ensuring correct polarity (+/-).
- Close the back cover securely.
4.2. Pendulum Installation
- Locate the pendulum hook inside the clock case.
- Gently attach the pendulum to the hook.
- Ensure the pendulum swings freely.
4.3. Wall Mounting
The clock is designed for wall mounting. Use the provided hardware for secure installation.
- Choose a suitable location on a sturdy wall, away from direct heat sources or vibrations.
- Using the provided flat panel and hook as a guide, mark the positions for the four screws.
- Drill pilot holes at the marked positions.
- Secure the flat panel and hook to the wall using the screws.
- Carefully hang the clock onto the installed hook, ensuring it is level and stable.

Image 4.1: Rear view of the clock, illustrating the battery compartment and mounting points.
5. Operating Instructions
5.1. Setting the Time
- Locate the time setting knob on the back or side of the clock mechanism.
- Turn the knob clockwise to advance the hands to the correct time.
- Important Note for Chime Synchronization: To ensure the chimes are accurate, it is recommended to set the time when the minute hand is at a quarter-hour mark (e.g., 12:00, 12:15, 12:30, 12:45). If the chimes are off, remove the battery, wait a few seconds, and reinsert it at the exact quarter-hour mark. Then, advance the hands to the current time, allowing the chimes to cycle at each quarter and hour. Avoid turning the hands counter-clockwise past any quarter or hour mark to prevent chime mechanism damage.

Image 5.1: Close-up of the clock face, indicating the time display.
5.2. Chime Selection
Your clock offers two chime melodies: Westminster and Whittington. A selector switch, usually located on the back or side of the clock, allows you to choose your preferred chime.
- Westminster Chime: Plays a melody at each quarter hour, followed by the hourly strike count.
- Whittington Chime: Plays a different melody at each quarter hour, followed by the hourly strike count.
5.3. Volume Control
A volume control dial or switch is provided, typically on the back of the clock, to adjust the chime loudness to your preference.
5.4. Nighttime Silencer
The clock features an automatic nighttime silencer function. This silences the chimes during specific hours, usually from 10:30 PM to 5:45 AM, to ensure quiet during sleeping hours. This feature is automatic and does not require manual adjustment once enabled (if applicable via a switch).
6. Maintenance
6.1. Battery Replacement
Replace the 'C' size battery approximately once a year, or when the clock's timekeeping becomes inaccurate or the chimes weaken. Always use a fresh, high-quality battery.
6.2. Cleaning
Wipe the clock case with a soft, dry cloth. Do not use abrasive cleaners, solvents, or polishes, as these may damage the finish. For the clock face, use a soft, lint-free cloth. Avoid spraying cleaners directly onto the clock.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock not running | Dead or incorrectly installed battery | Replace battery with a new 'C' size battery, ensuring correct polarity. |
| Chimes are incorrect or out of sync | Time was set improperly or battery was inserted at an off-quarter hour. | Remove battery, wait a few seconds, then reinsert it precisely at a quarter-hour mark. Reset the time by advancing hands clockwise. |
| No chime sound | Volume too low, nighttime silencer active, or chime selector off. | Adjust volume control. Check if it's within the nighttime silencer period. Ensure chime selector is set to Westminster or Whittington. |
| Pendulum not swinging | Pendulum not properly installed or obstructed. | Ensure pendulum is securely hooked and swings freely without touching the case. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | QXH066BLH |
| Brand | SEIKO |
| Dimensions (H x W x D) | Approximately 24.5 x 12.25 x 5 inches (62.2 x 31.1 x 12.7 cm) |
| Weight | 12.25 pounds (5.56 kg) |
| Case Material | Wood |
| Display Type | Analog |
| Power Source | 1 'C' size battery (included) |
| Chimes | Westminster / Whittington (selectable) |
| Special Features | Volume control, Automatic nighttime silencer |
| Mounting Type | Wall Mount |
9. Warranty and Support
Your Seiko QXH066BLH Wall Clock is covered by a manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms, conditions, and duration. For technical support, replacement parts, or warranty claims, please contact Seiko customer service or visit the official Seiko website. Keep your purchase receipt as proof of purchase.
For further assistance, you may visit the SEIKO Store on Amazon.