A dive watch bezel is a rotating bezel on a dive watch used to measure elapsed time. It is typically marked with 60 minutes and can be rotated in one direction only, usually counterclockwise. This prevents the diver from accidentally overestimating the time they have been underwater. One of the most important aspects of a dive watch is the bezel. It helps to time a dive and keep track of the elapsed dive time. This article will discuss how to use a dive watch bezel like a pro.

To use a dive watch bezel, follow these steps

It is important to note that dive watch bezels are only accurate for measuring elapsed time. They cannot be used to measure decompression stops or other dive parameters. For this reason, it is important to always consult a dive table or computer when planning a dive.

1. Rotate the bezel to align the zero markers with the minute hand.
2. Start your dive.
3. As you dive, keep an eye on the minute hand.
4. When the minute hand reaches the marker on the bezel, you have been underwater for one minute.
5. Continue counting up the minutes until you reach your desired bottom time.
6. When you are ready to ascend, rotate the bezel so the zero markers is aligned with the minute hand again.
7. Ascend at a rate of no more than 10 meters per minute.

Here are some additional tips for using a dive watch bezel:

• Make sure the bezel is unidirectional. A bidirectional bezel can be rotated in the wrong direction, leading to inaccurate measurements.
• Use a bezel with a clear and easy-to-read scale. This will make it easier to track elapsed time underwater.
• Practice using the bezel before you go diving. This will help you familiarize yourself with its operation and ensure you are comfortable using it.

Following these tips, you can use a dive watch bezel to safely and accurately measure elapsed time underwater.

What is a dive watch bezel, and why is it important?

A dive watch bezel is a rotating ring that surrounds the watch face. It is usually marked with numbers or markings to denote time. It is used to keep track of the elapsed dive time and as a countdown timer during decompression stops. The bezel can also mark the beginning and end of a dive.

Importance of using a dive watch bezel

A dive watch bezel is important because it helps a diver keep track of the elapsed dive time. This is crucial information for calculating decompression stops and preventing decompression sickness. If the dive computer fails, a dive watch bezel can also be used as a backup timing device.

Types of dive watch bezels

There are two types of dive watch bezels – unidirectional and bidirectional. A unidirectional bezel can only be turned in one direction – counterclockwise. This is to prevent the bezel from accidentally moving during a dive, which can result in an incorrect elapsed dive time. A bidirectional bezel, on the other hand, can be turned both clockwise and counterclockwise.

How to use a rotating bezel for dive timing?

Unidirectional vs Bidirectional bezels

As mentioned earlier, unidirectional bezels can only be turned counterclockwise, while bidirectional bezels can turn in both directions. Using a unidirectional bezel for diving is important as it prevents the bezel from accidentally moving during a dive, resulting in an incorrect dive time.

Why is it important to use a unidirectional bezel for diving?

Using a unidirectional bezel is essential for diving because it reduces the risk of an incorrect elapsed dive time. This, in turn, ensures that the diver can calculate decompression stops accurately, thus reducing the risk of decompression sickness.

How to use the rotating bezel for elapsed time?

To use the rotating bezel for elapsed dive time, rotate the bezel so that the zero marker aligns with the minute hand at the start of the dive. The bezel will rotate clockwise as the dive progresses, indicating the elapsed dive time.

How to mark the dive time on the bezel?

How to mark the starting point of the dive on the bezel?

To mark the starting point of the dive on the bezel, align the zero markers with the minute hand at the beginning of the dive.

How to mark the ending point of the dive on the bezel?

To mark the end of the dive on the bezel, turn the bezel until the minute hand aligns with the number or marking that denotes the end of the dive.

How to calculate the dive time using the bezel?

To calculate the dive time using the bezel, subtract the start and end times. This will give you the elapsed dive time.

Tips and Tricks for Using a dive watch bezel

How to prevent the bezel from accidentally moving during a dive?

Use a unidirectional bezel to prevent the bezel from accidentally moving during a dive. Also, make sure to lock the bezel before the dive.

How to use the bezel for scuba diving?

To use the bezel for scuba diving, align the zero markers with the minute hand at the start of the dive and read the elapsed dive time as the bezel rotates clockwise.

How to keep your dive watch bezel clean and maintained?

To keep your dive watch bezel clean and maintain, use a soft-bristled brush to clean the bezel. Also, avoid exposing the watch to extreme temperatures and pressure changes. Regularly check the bezel for scratches and replace it if necessary. In conclusion, a dive watch bezel is crucial for every diver. It helps in timing a dive, tracking elapsed dive time, and preventing decompression sickness. Following the above tips, every diver can use a dive watch bezel like a pro. 

Frequently Asked Questions How to Use a Dive Watch Bezel 

Q: What is a dive watch bezel?

A: A dive watch bezel is a rotating dial on top of the watch case and has markings that divers use to track elapsed time underwater.

Q: How do you use a dive watch bezel?

A: To use a dive watch bezel, you first need to set the bezel to the current time before you enter the water. Once in the water, align the zero markers on the bezel with the minute hand on the watch and then turn the bezel counter-clockwise to mark the dive’s start time.

Q: What are unidirectional bezels, and why are they important for divers?

A: Unidirectional bezels are dive bezels that can only rotate in one direction, usually counterclockwise. This design is essential for divers because it ensures that if the bezel is accidentally moved during the dive, it will only show that they have been underwater for a longer time, rather than a shorter time, which could be dangerous.

Q: What is the advantage of using a dive bezel?

A: The advantage of using a dive bezel is that it allows a diver to keep track of elapsed time underwater, which is a critical safety consideration. By setting the bezel to the dive’s start time, divers can see at a glance how much time they have spent underwater and how much air they have remaining.

Q: How do you set the bezel on a dive watch?

A: To set the bezel on a dive watch, you need to turn the bezel so that the zero marker lines up with the minute hand on the watch. The bezel should only be turned counter-clockwise and used to mark the dive’s start time.

Q: What do the markings on a dive bezel mean?

A: The markings on a dive bezel indicate the elapsed time underwater in minutes. Typically, a dive lasts for 30 to 50 minutes, so a dive bezel will have markings for each minute in that time range.

Q: What is the difference between an external bezel and an internal bezel?

A: An external bezel sits on top of the watch case and is designed to rotate. An internal bezel is a supplementary ring inside the watch that is also designed to rotate but must be adjusted using a separate crown. External bezels are more common on dive watches and easier to use underwater, while internal bezels are often found on pilot’s watches.

Q: Can the bezel on a dive watch be used for anything besides diving?

A: While the bezel on a dive watch is designed for underwater use, it can also be used to time any event that lasts less than an hour. However, it is important to note that the bezel should only be rotated counter-clockwise and should not be used to time any event that lasts longer than 60 minutes.

Q: What should you do if the bezel on your dive watch accidentally moves during a dive?

A: If the bezel on your dive watches accidentally moves during a dive, you should note the current time and how long you have been underwater. From then on, you should rely on your dive computer or dive timer to keep track of elapsed time.

Q: Are there any dive watch brands that are particularly known for the quality of their bezels?

A: Many dive watch brands, including Seiko, Rolex, and Blancpain, are known for the quality of their bezels. However, there is no one “best” brand, and the quality of the bezel will depend on the specific model of the watch.