Watch
:In naval parlance, watches are a timekeeping convention. The term in general use can mean any period of duty or responsibility, such as a hurricane watch.
Related Topics:
Naval - Watches - Hurricane watch
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A watch is a small portable clock that displays the current time and sometimes the current day, date, month and year. In modern times they are usually worn on the wrist with a watch-strap (made of e.g. leather, metal, or nylon), although before the 20th century most were pocket watches, which had covers and were carried separately, often in a pocket, and hooked to a watch chain.
Related Topics:
Clock - Time - Day - Date - Month - Year - Wrist
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Current watches are often digital watches, using a piezoelectric crystal, usually quartz, as an oscillator (see quartz clock).
Related Topics:
Piezoelectric - Quartz - Oscillator - Quartz clock
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In earlier times mechanical timepieces were used, powered by a spring wound regularly by the user. The invention of "Automatic" or "Self-Winding" watches allowed for a constant winding without special action from the wearer: it works by an eccentric weight, called a winding rotor, that rotates to the movement of the wearer's body. The back-and-forth motion of the winding rotor couples to a rachet to automatically wind the watch.
Related Topics:
Spring - Rachet
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Watches may be collectible; they are often made of precious metals, and can be considered an article of jewelry.
Related Topics:
Collectible - Jewelry
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~ Table of Content ~
| ► | Introduction |
| ► | Types of watch |
| ► | Watchmakers |
| ► | External links |
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Flood Watch - Wilkin (Minnesota)
FLOOD WATCH Issued At: 2008-11-04T19:38:00 Expired At: 2008-11-07T00:00:00 Issuing Weather Forecast Office Homepage: http://www.crh.noaa.gov/fgf/
Flood Watch - Roseau (Minnesota)
FLOOD WATCH Issued At: 2008-11-04T19:38:00 Expired At: 2008-11-07T00:00:00 Issuing Weather Forecast Office Homepage: http://www.crh.noaa.gov/fgf/
Flood Watch - Grant (Minnesota)
FLOOD WATCH Issued At: 2008-11-04T19:38:00 Expired At: 2008-11-07T00:00:00 Issuing Weather Forecast Office Homepage: http://www.crh.noaa.gov/fgf/
Flood Watch - Mahnomen (Minnesota)
FLOOD WATCH Issued At: 2008-11-04T19:38:00 Expired At: 2008-11-07T00:00:00 Issuing Weather Forecast Office Homepage: http://www.crh.noaa.gov/fgf/
Flood Watch - Pennington (Minnesota)
FLOOD WATCH Issued At: 2008-11-04T19:38:00 Expired At: 2008-11-07T00:00:00 Issuing Weather Forecast Office Homepage: http://www.crh.noaa.gov/fgf/
Flood Watch - Kittson (Minnesota)
FLOOD WATCH Issued At: 2008-11-04T19:38:00 Expired At: 2008-11-07T00:00:00 Issuing Weather Forecast Office Homepage: http://www.crh.noaa.gov/fgf/
Flood Watch - Norman (Minnesota)
FLOOD WATCH Issued At: 2008-11-04T19:38:00 Expired At: 2008-11-07T00:00:00 Issuing Weather Forecast Office Homepage: http://www.crh.noaa.gov/fgf/
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