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GoldenBear · 5 January 2008, 03:22 AM

How about this..you have a compass built into your Rolex, (sort of). Say it is 8:00. Point the 8 towards the sun. Now look for the 12:00 marker (triangle on my Sub). Point the hour hand at the sun. Split the difference, so, half way between 8 and 12 is 10 (10:00). That is south and would make 4 north. If you need to go east or west from there, adjust your direction accordingly, 90 degrees or 15 minutes.

Jocke · 5 January 2008, 03:28 AM

Quote:

Originally Posted by GoldenBear

How about this..you have a compass built into your Rolex, (sort of). Say it is 8:00. Point the 8 towards the sun. Now look for the 12:00 marker (triangle on my Sub). Point the hour hand at the sun. Split the difference, so, half way between 8 and 12 is 10 (10:00). That is south and would make 4 north. If you need to go east or west from there, adjust your direction accordingly, 90 degrees or 15 minutes.

I can use my one inside too.

Jocke

drnosker · 5 January 2008, 03:32 AM

My Rolex brochure that came with the GMT explains this.

seantk · 5 January 2008, 03:42 AM

I think that is the watch that MacGyver use to wear.

Sean

JJ Irani · 5 January 2008, 03:45 AM

Jocke,

You never cease to amaze us!!

doc_colton · 5 January 2008, 03:48 AM

What do you do if it's night-time?

96discose7 · 5 January 2008, 03:57 AM

what if your rolecks is digital

Jedi · 5 January 2008, 04:05 AM

Don't forget to make hemisphere specific adjustments. Ie. in the Southern Hemisphere, you'd reverse the reading, and also, the technique does not apply to places close to the Equator as there, the sun is pretty much overhead meaning less angle to play with.

GoldenBear · 5 January 2008, 05:31 AM

If you own a "rolecks" you should stay away...lol.

SPACE-DWELLER · 5 January 2008, 05:32 AM

Instead of having to write the whole thing again, here is something I found about the compass function:

Quote:

Originally Posted by SPACE-DWELLER

And on top of those functions, you can even use the GMT as a COMPASS!

GMT uses as a compass! CLICK!

Quote:

Originally Posted by SeaGoer

Do not mean to derail the thread but I would love to get the English translation of the attachment if it exists.

Quote:

Originally Posted by SPACE-DWELLER

I see what you mean!

Well, since I have an MA in German, I will translate the whole darned thing for you

Here goes:

Headline: "WATCH WITH COMPASS FUNCTION"

Text:

"Every watch can be used as a compass, but only when the sun shines. On the GMT and Explorer II the 24-hour hand works as a compass needle, but it also works with every other type of watch! Astonishing!
Now a tutorial and a thank you to the watch collector Georg Burger who provided it. It is very easy to do with the:

Rolex GMT Master or Explorer II:

1) Set the "normal" hour hand to point towards the sun
2) The 24-hour hand then is the "compass needle" and points EXACTLY to the North (if you are on the Northern hemisphere, that is, or else the 24-hour hand points to the South)

IMPORTANT: The hour hand and the 24-hour hand MUST point to the same time!

Normal watch with second time zone:

But it also works with a "normal" watch, albeit you - unlike with the GMT and Explorer II - have to do a little more thinking:

1) Set the hour hand to point towards the sun.
2) In your mind, create a "line" that goes from 12 o' clock, diving the watch dial in two halfs.
3) The half angle between the "line you created in your mind" and the hour hand points to the South.

Important: During DST (Daylight Saving Time) the "theoretical line" must go from the 1 o' clock position diving the dial in two halfs instead of dividing it from the 12 o' clock position".

----------------------

The pic:

"Arrow pointing towards the sun says:

"Let the hour hand point towards the sun"

Arrow pointing towards the North says:

"24 hour hand points towards the North"

Under the pic it says:

"Compass function with the GMT and Explorer II (source: Georg Burger)."

Quote:

Originally Posted by SPACE-DWELLER

I found another nice article on the GMT and its compass function:

GMT Compass function! CLICK!

(note: the whole site has a lot of good infos on Rolex! So please enjoy reading the various articles!)

DocD · 5 January 2008, 05:45 AM

That's an old trick, but have you figured out how to use a compass as a watch??!!!

vman · 5 January 2008, 05:45 AM

You can use this technique with any watch :) If you're into survival techniques this is a great one to know along with being able to navigate by using the North Star.

5 January 2008, 03:22 AM	#1
GoldenBear "TRF" Member Join Date: Jun 2007 Location: San Francisco Watch: Submariner Posts: 2,480	Watch as a compass? How about this..you have a compass built into your Rolex, (sort of). Say it is 8:00. Point the 8 towards the sun. Now look for the 12:00 marker (triangle on my Sub). Point the hour hand at the sun. Split the difference, so, half way between 8 and 12 is 10 (10:00). That is south and would make 4 north. If you need to go east or west from there, adjust your direction accordingly, 90 degrees or 15 minutes. __________________ ____________________________________________ Rolex Blue TT Submariner Rolex SS Submariner Breitling Emergency Mission They are just watches, wear 'em. ____________________________________________

5 January 2008, 03:32 AM	#3
drnosker "TRF" Member Join Date: Dec 2007 Location: New Jersey Posts: 68	GMT as a compass My Rolex brochure that came with the GMT explains this.

5 January 2008, 03:42 AM	#4
seantk "TRF" Member Join Date: Dec 2007 Real Name: Sean Location: West Florida Posts: 2,671	I think that is the watch that MacGyver use to wear. Sean __________________ "Life is frittered away with detail... simplify, simplify!" Henry D. Thoreau

5 January 2008, 03:45 AM	#5
JJ Irani Fondly Remembered Join Date: May 2005 Real Name: JJ Location: Auckland, NZ Watch: ALL SOLD!! Posts: 74,319	Jocke, You never cease to amaze us!! __________________ Words fail me in expressing my utmost thanks to ALL of you for this wonderful support during my hour of need!! I firmly believe that my time on planet earth is NOT yet up!! I shall fight this to the very end.......and WIN!!

5 January 2008, 05:31 AM	#9
GoldenBear "TRF" Member Join Date: Jun 2007 Location: San Francisco Watch: Submariner Posts: 2,480	If you own a "rolecks" you should stay away...lol. __________________ ____________________________________________ Rolex Blue TT Submariner Rolex SS Submariner Breitling Emergency Mission They are just watches, wear 'em. ____________________________________________

5 January 2008, 03:48 AM	#6
doc_colton "TRF" Member Join Date: Nov 2007 Location: Toronto Posts: 825	What do you do if it's night-time?

5 January 2008, 03:57 AM	#7
96discose7 Member Join Date: Mar 2007 Real Name: Andy Location: Somersworth NH Watch: Sub Posts: 109	what if your rolecks is digital

5 January 2008, 04:05 AM	#8
Jedi "TRF" Member Join Date: Sep 2007 Real Name: Lee Location: Malaysia Watch: 16750 Posts: 2,534	Don't forget to make hemisphere specific adjustments. Ie. in the Southern Hemisphere, you'd reverse the reading, and also, the technique does not apply to places close to the Equator as there, the sun is pretty much overhead meaning less angle to play with.

5 January 2008, 05:45 AM	#11
DocD "TRF" Member Join Date: Apr 2006 Location: New Jersey Watch: Submariner date Posts: 298	That's an old trick, but have you figured out how to use a compass as a watch??!!!

5 January 2008, 05:45 AM	#12
vman 2024 Pledge Member Join Date: Dec 2007 Real Name: Capt Swerve Location: North Carolina Watch: less TV Posts: 2,230	You can use this technique with any watch :) If you're into survival techniques this is a great one to know along with being able to navigate by using the North Star.

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