What is the Bezel ring of the compass used for?

The bezel ring of a compass is primarily used for land navigation, particularly at night. It allows for the setting and adjusting of the desired course or bearing. When navigating in low-light conditions, the bezel ring can be rotated to align with the desired heading while still allowing the user to maintain their orientation and direction without the need to constantly look up from the compass to observe the environment.

By turning the bezel to a specific degree marking, the navigator can effectively plot their course and utilize the compass more efficiently, reducing the likelihood of errors that might occur in dim lighting. This feature is crucial when navigating through unfamiliar terrains or during nighttime operations, ensuring precise directional guidance.