Where Does The Watch Bezel Originate From?Īround since the 1930s, the watch bezel has played a significant part in the evolution of the watch industry. The following guide will teach you all you need to know about the history of the watch bezel, the purpose of the bezel, and how to replace a faulty bezel. Therefore, check out the operation of a slide rule bezel from the following video.What is a bezel on a watch? You may know all about the crown and the watch strap, but do you know much about the beloved bezel? Since describing all the calculations you can do with a slide rule bezel takes huge blocks of text, it is much easier to watch it. However, if you’re looking for something more accessible, you can check out the Seiko SNA411. The most famous slide rule bezel watch is the Breitling Navitimer. It is possible to convert Fahrenheit to Celsius and mph to kph, do multiplications, divisions, square roots, and many more. Slide rule bezel watches consist of an outer bezel ring and inner bezel ring that are both reversible. However, behind these numbers is a full set of different calculations for pilots, but also some simpler conversions for ordinary people. When you look at it, you’ll find countless small markings and numbers that don’t make any sense. The slide rule bezel is, by far, the most complicated watch bezel type around. If you wish to delve into more complex calculations, see a thorough guide here. It means you have traveled exactly one mile. Then set off the stopwatch and wait until it hits the 100 mark on the bezel. For example, if it took 40 seconds to cover a mile, the scale on the bezel indicates 90 – it means you traveled at a speed of 90 mph.įor measuring distance, you need to know the speed you are traveling. Then read the number on a bezel that the timer’s hand indicates. How to use the tachymeter bezel: For measuring the speed you are traveling, start the stopwatch from the start of a mile (or a kilometer) and stop the timing when the distance is covered. This setting is vital as the stopwatch’s seconds are used for the calculations. One particular characteristic of tachymeter watches is that the watch’s seconds run on one of the subdials, while the stopwatch’s seconds can be found from the main dial (central seconds). Tissot Supersport Chrono with a tachymeter bezel Compared to the dive bezel, the countdown version comes with reverse numbers, i.e., starting with higher numbers when reading clockwise. The bidirectional bezel has markings that indicate the amount of time remaining before the event occurs. The countdown bezel is very similar to the dive bezel visually, but instead of counting up the elapsed time, this particular bezel counts down the time.įor example, you can use it as a countdown to a specific event, such as the start of your favorite TV show or a football match. How to use the dive bezel: Align the lume-filled zero marker of the bezel with the minute hand and, when some time has passed, read the elapsed time from the dial. There are also colorful options, such as the famous red-and-blue Pepsi bezels. Most affordable dive watches are equipped with aluminum bezels, but high-end models have swapped them for higher-class ceramic versions.ĭive bezels come in various colors and designs, ranging from simple black and blue to stylish coin-edged and scalloped designs. In addition, it contains luminous paint at the top (sometimes on the numbers as well) that, along with luminous hour markers and watch hands, help for visibility in the dark. Also, when turning the bezel, you can hear firm clicks. Professional dive bezels turn in one direction (unidirectionally) to not accidentally add to the dive time.
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