Introduction
This manual provides essential instructions for the proper use and care of your new Orient Japanese Automatic 40mm Diver Style Watch. Please read this manual thoroughly to ensure optimal performance and longevity of your timepiece.

Front view of the Orient Japanese Automatic 40mm Diver Style Watch, showcasing the blue dial and stainless steel bracelet.
Setup
1. Initial Winding
Your Orient watch is powered by an F6722 automatic movement, which is also hand-windable. To start the watch or if it has stopped, gently wind the crown clockwise approximately 30-40 times. This builds up the initial power reserve.
2. Setting the Time and Date
- Unscrew the Crown: The crown is a screw-down type for water resistance. Rotate the crown counter-clockwise until it springs out to position 1.
- Set the Date: Pull the crown out to position 2. Rotate the crown clockwise to adjust the date. Avoid setting the date between 9 PM and 3 AM, as this can damage the movement.
- Set the Time: Pull the crown out to position 3. The second hand will stop (hacking feature). Rotate the crown to set the hour and minute hands. To ensure accurate time, set the time a few minutes ahead, then push the crown back to position 1 when a time signal (e.g., from a radio or phone) reaches the desired time.
- Secure the Crown: Push the crown back to position 1 and screw it down clockwise firmly against the case to maintain water resistance.

Rear view of the watch, showing the screw-down case back and the stainless steel bracelet clasp.
Operating Your Watch
Automatic Movement
The F6722 movement is an automatic, self-winding caliber. It winds itself through the motion of your wrist. Regular wear will keep the watch powered. If the watch is not worn for an extended period, it will stop and require manual winding as described in the "Initial Winding" section.
Unidirectional Rotating Bezel
The watch features a unidirectional rotating bezel. This bezel can be used to measure elapsed time, typically for diving or other timed activities. To use it, align the triangle marker on the bezel with the minute hand at the start of your activity. The minute hand will then indicate the elapsed time against the bezel's markings.
Water Resistance
This watch is water resistant to 200 meters (660 feet). This rating makes it suitable for professional marine activity and serious surface water sports. It is not suitable for scuba diving. Always ensure the crown is fully screwed down before exposing the watch to water.
Maintenance and Care
- Cleaning: Wipe the watch regularly with a soft, dry cloth to remove dust and smudges. For stainless steel parts, a slightly damp cloth can be used, followed by immediate drying.
- Sapphire Crystal: The watch is equipped with a scratch-resistant sapphire crystal. While highly durable, it is not entirely impervious to damage. Avoid extreme impacts.
- Temperature Extremes: Avoid exposing your watch to extreme temperatures or sudden temperature changes, as this can affect the movement and seals.
- Chemicals: Keep the watch away from chemicals, solvents, and detergents, which can damage the case, seals, and strap materials.
- Magnetic Fields: Strong magnetic fields can affect the accuracy of mechanical watches. Keep your watch away from strong magnets (e.g., speakers, refrigerators, certain electronic devices).
- Service: For optimal performance, it is recommended to have your automatic watch serviced by a qualified watchmaker every 3-5 years.
Troubleshooting
- Watch Not Running: If the watch has stopped, ensure it is sufficiently wound. Manually wind the crown 30-40 times. If it still does not start, gently shake the watch side-to-side to engage the rotor.
- Inaccurate Time: Minor variations in accuracy are normal for mechanical watches. If the watch is consistently gaining or losing significant time, it may require adjustment by a professional watchmaker. Exposure to strong magnetic fields can also cause inaccuracy.
- Date Not Changing: Ensure the crown is fully pulled out to position 2 when setting the date. If the date is stuck, try advancing the time past midnight to see if it changes. If not, consult a watchmaker.
- Water Inside Watch: If you notice condensation or water inside the watch, immediately take it to a qualified watchmaker for inspection and repair to prevent further damage.
Specifications
| Movement | Orient F6722 Automatic, Hand-Winding, Hacking |
| Case Diameter | 39.9mm |
| Lug-to-Lug | 46.5mm |
| Lug Width | 20mm |
| Crystal | Sapphire Crystal |
| Water Resistance | 200m (660ft) |
| Model Number | RA-AC0Q02L10B |
| Manufacturer | Seiko Epson |
Warranty and Support
For information regarding warranty coverage, service centers, or additional support, please refer to the official Orient website or contact your authorized dealer. Keep your proof of purchase for warranty claims.
Additional Resources
Below are some videos that may provide further insight into the watch's features and operation:
Orient Mako Sport Overview
This video provides an overview of the Orient Mako Sport watch, highlighting its design and features. (Creator: Ben Arthur - Ben's Watch Club)





