Contents

Contents
1. Features
2. Before Using the Watch
3. Names of Components and Major Functions
4. Switching Modes (Display Functions)
5. Checking 0-Position of Each Hand
6. Accessing Times and Dates of Major Citiesaround the World
7. Switching between Analog Time and Digital Time
8. Hand Evacuation Function(When reading the time is difficult because the analog handscover the digital display)
9. Setting the Time
10. Setting the Date (Date is corrected by digital display)
11. Using the Race timer
12. Using the Chronograph
13. Using the Timer
14. Using the Alarm
15. Using Zone Setting
16. About All-Reset
17. Functions Unique to Eco-Drive Watches
- [Insufficient Charging Warning Function]
- [Time Setting Warning Function]
- [Overcharging Prevention Function]
- [Power Save 1]
- [Power Save 2]
18. General Reference for Charging Times
19. Notes Regarding Handling of this Watch
20. Precautions
21. Specifications

Citizen C660 Instruction Manual

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Citizen C660 Watch Specification

The Citizen C660 Watch is a sophisticated timepiece that combines advanced technology with elegant design. It features Eco-Drive technology, which harnesses light from any natural or artificial source to power the watch, eliminating the need for battery replacements. The C660 is equipped with a perpetual calendar that automatically adjusts for leap years and varying month lengths, ensuring accurate date tracking without manual intervention. Its chronograph function allows precise timekeeping with a 1/20 second measurement capability and a maximum time of 60 minutes. The watch includes a dual-time feature, enabling the wearer to track time in two different time zones simultaneously, which is ideal for frequent travelers.

The C660's analog display is complemented by luminous hands and markers, providing visibility in low-light conditions. The watch is crafted with a durable stainless-steel case and scratch-resistant sapphire crystal, offering robust protection against daily wear and tear. Water resistance up to 100 meters makes it suitable for swimming and snorkeling but not for diving. The Citizen C660 features a fold-over clasp with a push-button release for secure and comfortable wear. Its design is both contemporary and timeless, suitable for a variety of occasions from casual outings to formal events. This watch not only embodies precision and reliability but also represents Citizen's commitment to innovative and sustainable watchmaking.

Citizen C660 Watch F.A.Q.

How do I set the time on my Citizen C660 watch?

To set the time on your Citizen C660 watch, pull the crown out to the second click position and rotate it to adjust the hour and minute hands to the desired time. Push the crown back to its normal position once set.

What should I do if my Citizen C660 watch is not charging?

If your Citizen C660 watch is not charging, ensure it is exposed to sufficient light. Place it under direct sunlight or a fluorescent lamp for adequate charging. Avoid incandescent lights as they are less effective.

How can I reset the chronograph on my Citizen C660 watch?

To reset the chronograph, press the lower button to stop the chronograph, and then press and hold the same button until the hands reset to the zero position.

Why is my Citizen C660 watch running slow?

If your Citizen C660 watch is running slow, it may need a reset or charging. Check if the battery is low and ensure it receives adequate light for charging. If issues persist, consult a service technician.

How do I adjust the date on my Citizen C660 watch?

To adjust the date, pull the crown out to the first click position and rotate it until the correct date appears. Be cautious not to change the date between 9 PM and 3 AM to avoid damaging the mechanism.

What is the power reserve of the Citizen C660 watch?

The Citizen C660 watch typically has a power reserve of up to six months when fully charged. Regular exposure to light can maintain its charge effectively.

How can I clean my Citizen C660 watch?

To clean your Citizen C660 watch, use a soft, damp cloth to wipe the exterior. Avoid using solvents or chemicals that might damage the watch's finish. Ensure the watch is water-resistant before using any moisture.

Can I wear my Citizen C660 watch while swimming?

The Citizen C660 watch's water resistance varies by model, so check the watch's specifications. Generally, it is safe for swimming if it is rated for at least 100 meters water resistance.

How do I switch between 12-hour and 24-hour format on my Citizen C660 watch?

To switch between 12-hour and 24-hour formats, press and hold the upper right button until the display changes. This function may vary, so refer to the user manual for specific instructions.

What maintenance does my Citizen C660 watch require?

Regularly clean your Citizen C660 watch and ensure it is charged by exposing it to light. Periodic checks by an authorized service center can help maintain its accuracy and functionality.