Most divers' watches today have a rotating bezel to support the watch's specific features. So why does the watch have bezel? What is bezel used for?
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1. What is bezel ring on the watch?
The bezel ring is a part of the dial that connects the case and watch face . The bezel has 2 types: fixed bezel and rotating bezel 1 or 2 directions .
On the bezel are numerals or numerals divided into 60 sections corresponding to 60 minutes , printed or embossed on the surface, creating a striking accent for the watch.
In addition, the bezel also has other useful functions such as diving time measurement, lap measurement, pulse counting, speed measurement, distance measurement, ..
2. History of bezel watches
Clock bezel first appeared around the early 20s of the twentieth century, on the super-rare Rolex Zerographe ref. 3346 was launched in 1937 .
It is considered the world's first watch with a bezel, though it is not a diver's watch, and is also the first Rolex watch to have this feature.
However, it was not until the 1950s, when divers' demand for underwater time tracking grew, that the dive watch bezel was officially introduced for the first time.
This diving bezel is part of the design of the Blancpain Fifty Fathoms military watch , released in 1953 . This is also considered the first diving watch in the world.
Longines is also one of the brands that owns unique and famous bezel models. Longines' proportional bezel and Charles Lindbergh crossed the Atlantic and became his navigation tool.
During that period, the Blancpain Fifty Fathoms and the Rolex Submariner were the two most perfect divers and became the prototypes for next-generation diving watches. In addition, they are ISO 6425 certified , the international standard for modern diving watches.
In addition to diving watches, bezel rings are also used for military watches with glowing dials and pilot watches with GMT world time rotation and view.
3. Types of bezel on the watch and how it looks
The bezel ring comes in a variety of different types, but in general, the bezel comes in two types: the rotating bezel and the fixed bezel are controlled by a crown . Right now, humanity is utilizing the bezel for the following purposes:
- Measure time
The bezel that appears on a dive watch is usually graduated from 0 to 60 for 60 minutes, helping the diver calculate the remaining oxygen based on the time when diving.
How to view:
+ Step 1 : Turn the bezel to the 0 line position to coincide with the minute hand as shown in the picture.
+ Step 2 : Track the diving time by determining the position of the minute hand corresponding to the number of bezel rings, it is the number of minutes of diving.
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- Countdown
This feature helps you to set a certain time while diving. In addition, this feature is also very useful for pilots or in the military in special cases needing time synchronization.
How to view:
+ Step 1 : Need to know the countdown rule from 60 to 0, that is, subtract 60 minutes from the index to get the countdown time.
+ Step 2 : Rotate the number corresponding to the number of minutes you need counter-clockwise to the minute hand position. For example, a 10-minute dive would have to mark the number 50 of the minute hand.
Step 3 : Follow up until the minute hand runs to position 0 of the bezel marker, the time is up.
- GMT feature
This feature allows you to view 2 or more time zones around the world.
+ Step 1 : Check and ensure that the 24-hour scale is accurately displaying local time at the time of needing.
+ Step 2 : Calculate the hours at the place you need to convert to add or subtract how many hours compared to local time. Then rotate the bezel to the left or to the right as many steps as you need to see the time.
- Speed ​​measurement (Tachymeter)
This feature appears on chronograph models with fixed bezel, for accurate speed measurement.
How to view:
+ Step 1 : Determine the distance between 2 points that need speed measurement. Adjust the chronograph seconds hand to 0 o'clock. When passing the start point, press the start button.
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Step 2 : When you reach the end point, press finish. The second hand stops and points to the time on the center dial, while also indicating your km / h speed in the bezel.
Recently, there are information about the bezel on the watch as well as the use and how to view each feature. Hope the article will help you!
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