Citizen B642 Instruction Manual

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Citizen B642 Watch Specification

The Citizen B642 watch is a sophisticated timepiece designed for both functionality and style, integrating advanced technology with a classic aesthetic. At the heart of the B642 is its Eco-Drive technology, a hallmark of Citizen watches, which harnesses light from any natural or artificial source to power the watch, eliminating the need for battery replacements. This environmentally friendly power source ensures the watch remains operational without interruption. The B642 features a robust stainless steel case, providing durability and resistance to everyday wear and tear, while a mineral crystal glass cover protects the dial from scratches and impacts. The watch face is designed for optimal readability, featuring luminous hands and markers for visibility in low-light conditions. The date function is integrated seamlessly into the dial, offering convenience without cluttering the design. Water resistance is rated up to 100 meters, making it suitable for everyday activities and light water exposure, such as swimming or snorkeling, though not recommended for scuba diving. The strap is crafted from leather, stainless steel, or a combination of both, depending on the specific model variation, providing comfort and a secure fit. The clasp mechanism is designed for ease of use while ensuring the watch remains securely fastened. Precision quartz movement ensures accurate timekeeping, reflecting Citizen's commitment to quality and reliability. The Citizen B642 watch is an excellent choice for those seeking an elegant yet practical timekeeping device, combining innovative technology with timeless design elements.

Citizen B642 Watch F.A.Q.

How do I set the time on my Citizen B642 watch?

To set the time, pull the crown out to the first click and rotate it to adjust the time. Push the crown back in once the correct time is set.

How can I adjust the date on my Citizen B642 watch?

Pull the crown out to the first click, turn it counterclockwise to set the date, then push it back in. Make sure not to set the date between 9 PM and 3 AM to avoid damaging the mechanism.

What should I do if my Citizen B642 watch stops working?

First, check if the battery needs replacement. If the battery is fine, ensure the watch is not exposed to magnets or strong vibrations. If problems persist, contact a professional watch repair service.

How do I clean my Citizen B642 watch?

Use a soft cloth to wipe the watch gently. For metal bands, use a toothbrush with soapy water for deeper cleaning, and ensure the watch is water-resistant before exposing it to water.

Can I wear my Citizen B642 watch while swimming?

Check the water resistance rating of your specific model. If it's rated for swimming, ensure the crown is pushed in securely before exposure to water.

Why is my Citizen B642 watch losing time?

The watch may need a battery replacement or could be affected by temperature extremes or magnetic fields. Consider having it inspected by a professional.

How often should I service my Citizen B642 watch?

It's recommended to service your watch every 3-5 years to ensure optimal performance and longevity.

What type of battery does the Citizen B642 watch use?

The Citizen B642 typically uses a silver oxide battery. Refer to the user manual or consult a watch technician for specific battery type information.

How can I replace the strap on my Citizen B642 watch?

To replace the strap, use a spring bar tool to remove the existing strap. Align the new strap and insert the spring bars into the lugs. Ensure the bars are securely in place.

Why is the chronograph on my Citizen B642 not resetting to zero?

Reset the chronograph by pulling the crown to the second click and pressing the top button until the hand aligns at zero. Consult the manual for specific instructions if needed.