The following is a brief description of the types of watches that are available in the marketplace. Included is a list of the names of watch parts and watch terminology.
The majority of the watches sold today have quartz movements. The best way to explain the differences between watch movements available is to compare them to mechanical watches, which were the first wrist watches introduced in 1910.
|Mechanical||Mechanical Watches use a balance wheel for time measurement and a mainspring for power. They require manual winding.|
|Automatic||Automatic Watches are self-winding mechanical watches. They have a rotor which includes an oscillating weight that swings backwards and forwards with every movement of the wrist. The oscillations are converted by means of a gearing into a rotary motion that winds the mainspring.|
|Quartz||Quartz Watches use a quartz crystal for time measurement and a battery for power. They require no winding. A vibrating piece of quartz crystal is used to track time. Usually accurate to within 30 seconds a month. Watches that use a quartz moment have 75% less moving parts than conventional mechanical watches, and therefore require less maintenance.|
|Kinetic quartz watches are exclusive technology to Seiko. It is a quartz watch without a battery. The Kinetic quartz generates electrical energy to power itself from the natural movement of the wearer’s arm and wrist. It stores the energy in a capacitor. The reserve energy lasts 3 to 14 days in a motionless watch.|
Solar Watches use a quartz crystal for time measurement. Any light source is absorbed through the crystal and dial. A solar cell converts the light into energy to power the watch. No battery is needed
|Ana-Dig:||Ana-dig watches have both an analog and digital display. The analog display has a traditional dial with hour, minute and, sometimes, second depiction. A digital display shows the time numerically with liquid crystal numbers|
|ATM||Feet||Meter||Examples of Usage|
|1||33||10||Showerproof or splashproof. Protected against accidental exposure to water.|
|3||100||30||Will withstand splashes or brief emersion in water, but is not suitable for swimming.|
|5||165||50||Suitable for swimming.|
|10||330||100||Suitable for swimming and snorkeling.|
|15||500||150||Suitable for snorkeling.|
|20||660||200||Suitable for skin diving.|
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