Bidirectional rotating bezel9:58 am
A bezel that can be rotated in both clockwise and anti-clockwise direction and is used to measure any time related events like elapsed time or shifting time zones etc is called a bi-directional bezel. A bi-directional bezel adds to the functionality of a timekeeper and is usually found in high-end watches. The bezel acts as the rim which encompasses the watch crystal and fastens the jewel. In some selective timekeepers the bezel is equipped with functions like measuring elapsed time or adjusting different time zones or using a tachymeter.
The bi-directional bezel can be made of various materials like gold filled, 18-karat gold, gold-plated, brass, and plastic, titanium or stainless steel. This kind of bezel was initially designed for divers to facilitate them with functions like a water pressure and distance marking. It is used for keeping track of elapsed time. Allowing the bezel to be rotated either way gives maximum flexibility to beginning the timing.For a time measurement bezel, it is numbered for 0-60 mins, counting up or down. To measure a specific elapsed time, you can simply turn the bezel to the minute marker line with the minute hand on the watch dial. The opposite case is for a count up bezel where the minute counter counts off minutes as the time passes. For speed measurement you can start the chronograph function at a particular distance measured. After1 unit of the distance is elapsed, the point on the scale that is adjacent to the seconds hand in the actual speed.
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