About the Product
Features
This product is a mechanical self-winding watch (with manual winding).
- Winding the mainspring provides the driving force to move the watch.
- Vibration-resistant bearings are used to protect the balance from impact.
- This watch shows the date and day of the week in addition to showing the time (hour, minute, and second).
- A second hand halt mechanism is provided.
Names and Functions of Individual Component Parts
| A | Hour hand | |
| B | Minute hand | |
| C | Second hand | |
| D | Date | |
| E | Day of the week | |
| F | Crown *1 | |
| 0 | 0 click: Normal position (manual winding) | |
| 1 | 1st click: Calendar setting | |
| 2 | 2nd click: Time setting (second hand halt mechanism) | |
| G | Crown for internal rotating indicator ring *1 | |
| H | Rotating bezel *2 | |
| I | Internal rotating indicator ring *2 | |
Some models have a screw-down crown.
> "How to Use the Screw-Down Crown"See the following for the method of use.
> "How to Measure the Elapsed Time"
- The design of the dial and position of the crown may differ depending on the model.
Specifications
| Oscillations | 21,600 oscillations/hour |
| Daily rate | +25 s to -15 s (static accuracy) *3 |
| Drive method | Mechanical (self-winding, manual winding) |
| Clock display | Time (hour, minute, and second), date, day of the week |
| Number of jewels | 22 |
| Continuous operating time | 40 hours min. |
| Manual winding (fully wound) Number of crown rotations | Approx. 30 |
| Self-winding Direction of rotation | Both directions |
| Magnetic resistance | Type 1 *4 |
| Water resistance | *5 |
The daily rate is the amount the watch is fast or slow after 24 hours elapse.
The static accuracy above is based on factory adjustment and warranty when under static conditions and at room temperature.
Due to the characteristics of mechanical watches, the above static accuracy may go out of range due to the conditions of use (watch orientation, amount of mainspring winding, temperature, etc.).
Do not evaluate the error over one day only, but over about one week.Watches with Type 1 magnetic resistance are reinforced to withstand magnetism.
See the following for details about the magnetic resistance.
> "Maintenance Guide > Effect of Magnetism" (opens new window)The water resistance performance is indicated on the case back.
A watch with WATER RESISTANT indicated on it has enhanced water resistance performance.
> "For Safe Use > Precautions Regarding Water Resistance" (opens new window)
- Product specifications are subject to change without notice for improvement.