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A little known fact about GMT watches. :)

gioarmani7428

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2/9/06
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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.
 

pafre

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15/12/07
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thanks for the info, migth be useful one day if the GPS fails in the woods.



Et je ne dirais pas non aussi :shock:
 

brtelec

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Did you guys know that if you hold your wife or girlfriends ass up to your ear you can hear the ocean? Bet you didn't know that! :D
 

KBH

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brtelec said:
Did you guys know that if you hold your wife or girlfriends ass up to your ear you can hear the ocean? Bet you didn't know that! :D

I tried that. It sounded like a barking frog.
 

watchbuff

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Wow, I forgot all about that. I learned that soemwhere in celestial nav in the navy.
Now i just hit - Direct ,Enter ,Enter on a Garmin 530, never lost!
 

brtelec

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watchbuff said:
Wow, I forgot all about that. I learned that soemwhere in celestial nav in the navy.
Now i just hit - Direct ,Enter ,Enter on a Garmin 530, never lost!

How is that more fun than listening to your girlfriends ass? Oh you meant the thing with the watch. Never mind. :D
 

fakemaster

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I just discovered if you set it to the current time, It will read the EXACT same thing tomorrow AT the same time.

Is that some shit or what?
 

Hogan

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fakemaster said:
I just discovered if you set it to the current time, It will read the EXACT same thing tomorrow AT the same time.

Is that some s**t or what?


Shut up!!! No way man!
 

Y8T8

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20/11/08
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fakemaster said:
I just discovered if you set it to the current time, It will read the EXACT same thing tomorrow AT the same time.

Is that some s**t or what?

It will even do that if the watch does not run! :lol:
 

kegs

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7/9/09
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lol.....what about daylight saving...? does the girlfriend sound like the tide is out...?...
 

pedecter

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How do you find your dog if he's lost in the woods?

Put your ear up to a tree and listen for the bark.
 

msap7222

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Is the REVERSE true in the southern hemisphere?


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