Time signal watches (or radio controlled watches) are watches which regularly synchronize with a radio time signal, such as the UK<"e;s MSF signal broadcast from Anthorn by the national physics laboratory. To save power, the radio reception generally only happens a few times a day, and thereafter time is kept by a regular crystal mechanism. As such, while they keep very accurate time - usually accurate to the second - time signal watches do deviate very slightly from actuaal time. Nevertheless, you are unlikely to find a way to keep more accurate time than a time signal receiving watch, and accuracy to the second is generally enough for most people. Other benefits of time signal watches include automatically resetting to daylight saving time and often having features which allow you to reset them globally using city names rather than manually moving the watches hands.
The first question when choosing a time signal watch is 'Male' or 'Female'. The constraints of fashion mean watches designed for men and women have differing characteristics. Watches for Men tend to have larger faces, thicker straps and may have more technical or sporty features. Watches for women tend towards elegance. They are smaller and often available in a wider range of colours.
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