Automatic watches do not operate on batteries. Automatic watches are made up of about 130 or more parts that work together to tell time. Automatic movements mark the passage of time by a series of gear mechanisms, and are wound by the movement of your wrist as you wear it. The gear train then transmits the power to the escapement, which distributes the impulses, turning the balance wheel. The balance wheel is the time regulating organ of a mechanical watch, which vibrates on a spiral hairspring. Lengthening or shortening the balance spring makes the balance wheel go faster or slower to advance or retard the watch. The travel of the balance wheel from one extreme to the other and back again is called oscillation. Also referred to as self-winding, watches with automatic movements utilize kinetic energy, the swinging of your arm, to provide energy to an oscillating rotor to keep the watch ticking. They’re considered more satisfying to watch collectors (horologists) because of the engineering artistry that goes into the hundreds of parts that make up the movement. If you do not wear an automatic watch consistently (for about 8 to 12 hours a day), you can keep the watch powered with a watch winder (a great gift for collectors).
It needs no battery, but it will stop if you have been physically inactive for an extended period of time. If this happens, wind the crown 40 times clockwise to start the watch and give it some reserve power.
With a polished stainless steel band features hidden clasp, this simple white dial watch features polished gold case and gold hands, anti-reflective sapphire crystal dial window and a Japanese automatic movement. It also features date display at 3 o’clock, and diamond around outer dial. Water resistant to 330 feet (100 M) suitable for snorkeling as well as swimming but not diving.
- Japanese Miyota automatic movement; Functions without a battery; Powers automatically with the movement of your arm
- Protective Anti-Reflective Sapphire Crystal dial window
- Stainless steel band features hidden clasp; Date function
- Case diameter: 39 mm; Water resistant to 330 feet (100 M)
- The package also includes: Tool to remove pins to adjust watch band and A Gift
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