Seiko 6R64 - Mechanical watch characteristics (Hand-wound, auto-wound); Names of the parts and their functions; How to wind the mainspring

designed for scuba diving or saturation diving, have not been conducted on the water resistant watch with the BAR
(barometric pressure) display. For diving, use watches specifically designed for diving.
CAUTION
Do not pour running water directly from faucet. The water pressure of tap water from a faucet is
high enough to degrade the water resistant performance of a water resistant watch for everyday life.
Mechanical watch characteristics (Hand-wound, auto-wound)
This is a mechanical watch powered by a spring.
To use it from a stopped state, turn the crown 20 turns by hand to wind up the spring before starting the watch.
Although the accuracy of quartz watches is measured in differences over months or years, in mechanical
watches it is measured in differences per day (i.e., the amount the watch speeds up or slows down in a single
day).
Additionally, mechanical watches are subtly affected by the conditions in which they are used (e.g., duration
worn, temperature, arm movement, the amount wound, etc.) ; thus, the amount of error is not constant.
When affected by a strong magnetism from outside, a mechanical watch may lose/gain time temporarily. The
parts of the watch may become magnetized depending on the extent of the effect. In such a case, consult the
retailer from whom the watch was purchased since the watch requires repair including demagnetizing.
Names of the parts and their functions
1. Minute hand
2. Hour hand
3. Power reserve indicator
4. Seconds hand
5. Date hand
6. 24-hour hand
7. Crown
Normal position (not locked): Wind up the watch (hand-wound)
First click position: Time difference adjustment/Date setting
Second click position: Time setting
* The position and design of the display may vary depending on the model.
* The direction of the power reserve indicator is different depending on the model.
How to wind the mainspring
This is an automatic mechanical watch with a manual winding mechanism.
When the watch is worn on the wrist, the mainspring is wound automatically through normal wrist movement.
The watch can also be wound up by turning the crown.