Jump to content
When you buy through links on our site, we may earn an affiliate commission.
  • Current Donation Goals

Little known GMT fact :)


gioarmani

Recommended Posts

Not many people know that on a GMT bezel, the wearer can use the 24-hour dial for approximate navigation anywhere between the Tropic of Cancer and the Arctic Polar Circle. But, both the 12 and the 24 hour hand must be synchronized to display local time.

Method 1: When laid horizontally, the dial will head North if the 24 hour hand is pointed towards the sun.

Picture1-20.jpg

Method 2: If the 12 hour hand is pointed at the sun, the 24 hour hand will point North.

The margin of error directly depends on the difference between local official time and actual local solar time, which is why you have to be between the Tropic of Cancer & the Arctic Polar Circle. But one doesn't need to get too much in the technical details for approximate North, East, South, West navigation.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...
Please Sign In or Sign Up