SEIKO KX388B Radio Analog Wall Clock Instruction Manual

1. Introduction

Thank you for purchasing the SEIKO KX388B Radio Analog Wall Clock. This clock features a wooden frame, an analog display, and a radio correction function for accurate timekeeping. This manual provides essential information for setting up, operating, and maintaining your clock.

Figure 1: Front view of the SEIKO KX388B clock, showcasing its round wooden frame and clear analog dial.

2. Safety Information

• Do not expose the clock to extreme temperatures, direct sunlight, or high humidity.
• Avoid dropping the clock or subjecting it to strong impacts.
• Keep batteries out of reach of children. Dispose of used batteries properly according to local regulations.
• Do not attempt to disassemble or repair the clock yourself. Contact qualified service personnel for assistance.

3. Package Contents

Please ensure all items are present in the package:

• SEIKO KX388B Radio Analog Wall Clock
• AA Manganese Battery (x1)
• Instruction Manual (this document)

4. Setup

4.1 Battery Installation

1. Locate the battery compartment on the back of the clock.
2. Insert one AA manganese battery, ensuring the polarity (+/-) matches the indicators inside the compartment.
3. Close the battery compartment cover securely.

Figure 2: Rear view of the clock, highlighting the battery compartment and control buttons.

4.2 Initial Time Setting (Radio Correction)

The clock will attempt to receive a radio signal to set the time automatically. This process may take some time.

1. After inserting the battery, the clock hands will spin and stop at the 12 o'clock position.
2. Place the clock in an open area, away from electronic devices that might interfere with the radio signal.
3. Allow the clock to rest for approximately 10-30 minutes. During this time, the clock will attempt to receive the radio time signal (40 kHz/60 kHz automatic selection) and set itself.
4. Once the signal is received, the clock hands will automatically move to the correct time.

4.3 Manual Time Setting (If Radio Signal is Unavailable)

If the clock does not set automatically after an extended period or if you are in an area with poor radio signal reception, you can set the time manually:

1. Locate the 'SET' button on the back of the clock (refer to Figure 2).
2. Press and hold the 'SET' button. The clock hands will begin to move.
3. Release the button when the hands reach the desired time.

4.4 Wall Mounting

The clock is designed for wall mounting.

1. Choose a suitable location on a wall, ensuring it is sturdy enough to support the clock's weight (approximately 1.1 kg).
2. Install a screw or hook into the wall, leaving a small portion protruding.
3. Align the hanging slot on the back of the clock with the screw/hook and securely hang the clock.

Figure 3: Side view illustrating the clock's profile and depth, useful for understanding mounting requirements.

5. Operating Features

5.1 Radio Correction Function

The clock automatically receives standard radio waves (40 kHz/60 kHz) to correct the time, ensuring high accuracy. If the radio wave reception is poor or unavailable, the clock operates with standard quartz accuracy.

Figure 4: Conceptual diagram of radio wave coverage for time signal reception, indicating how the clock receives accurate time data.

5.2 Radio Wave Off Function

This clock includes a function to disable radio wave reception if desired. Refer to the specific controls on the back of the clock (Figure 2) for instructions on activating or deactivating this feature.

5.3 Sleep Second Hand

The 'Sleep Second Hand' feature automatically stops the second hand during nighttime hours (typically between 10 PM and 6 AM) to conserve battery life and reduce noise. The second hand will resume normal operation in the morning.

5.4 Step Second

The clock features a 'Step Second' movement, where the second hand moves in distinct one-second increments.

6. Maintenance

6.1 Cleaning

To clean the clock, gently wipe the surface with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these may damage the finish or internal components.

6.2 Battery Replacement

When the clock's movement becomes erratic or stops, it is time to replace the battery. Follow the battery installation steps in Section 4.1. Always use a fresh AA manganese battery.

7. Troubleshooting

• Clock not setting time automatically: Ensure the battery is correctly installed. Move the clock to a location with better radio signal reception, away from electronic interference. Allow sufficient time (up to 24 hours) for the clock to receive the signal. If unsuccessful, try manual time setting (Section 4.3).
• Hands not moving: Check if the battery is depleted or incorrectly installed. Replace with a fresh battery if necessary.
• Inaccurate time: If the clock is consistently inaccurate, it may not be receiving the radio signal. Try relocating the clock or setting the time manually.
• Second hand stops at night: This is normal behavior due to the 'Sleep Second Hand' feature. It will resume in the morning.

8. Specifications

Figure 5: Dimensional drawing of the clock, confirming its 33cm diameter.

9. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the official SEIKO website or contact your local SEIKO authorized dealer. Keep your purchase receipt as proof of purchase.