Understanding The GMT Function

[kcmo]

Hi Guys/Gals!

Being a WIS I should probably have figured this out by now, but can anyone explain or provide a tutorial for (maybe a link online) how the GMT function works on a watch?

I've always been intrigued by it and know how popular the GMTs and Exp2 models are on this forum. I understand these models have the ability to track a second time zone, but I still don't 'get' the logistics and setting the watch...as in how the time is read.

Any help would be appreciated

Thanks in advance

[frostie]

Here is a tutorial Karis.

Enjoy it

http://www.youtube.com/watch?v=76RAJWQoosE

[kcmo]

Gee Velitsko, you're quick! Thanks, I'll take a look!

[frostie]

Originally Posted by kcmo

Gee Velitsko, you're quick! Thanks, I'll take a look!

Glad to be of help

[portable75]

http://http://www.watchreport.com/20..._of_the_r.html

I love it....I use 24hr all the time

[frostie]

Originally Posted by portable75

http://http://www.watchreport.com/20..._of_the_r.html

I love it....I use 24hr all the time

You've typed http:// twice

[kcmo]

Velitsko, the video was great, but it just showed how to set the time....is there one that explains tracking a second time zone?

[East Bay Rider]

Actually with the GMT you can track 3 time zones and use it as a compass in the daytime (Thanks to Bo for informing me about that feature).
Set the 24 hand to your "home" time. Set the hour (mercedes) hand to the time where you are now. Rotate the bezel to monitor a third time zone.

[frostie]

Originally Posted by kcmo

Velitsko, the video was great, but it just showed how to set the time....is there one that explains tracking a second time zone?

I had a link where they were showing how to track timezones but i can't find it.

Basically what you do is switch the hour hand back and forth in order to travel through time zones. The 24 hour hand is supposed to show you the local time.

There is another way of moving through time zones without unscrewing the crown ( but first you have to set the watch like he showed in the video). After setting the watch you just move the bezel back and forth in order to travel through timezones.

Hope that my explanation was helpful

[kcmo]

Mike, where are you?

[kcmo]

Originally Posted by frostie

I had a link where they were showing how to track timezones but i can't find it.

Basically what you do is switch the hour hand back and forth in order to travel through time zones. The 24 hour hand is supposed to show you the local time.

There is another way of moving through time zones without unscrewing the crown ( but first you have to set the watch like he showed in the video). After setting the watch you just move the bezel back and forth in order to travel through timezones.

Hope that my explanation was helpful

Hmmm, I'm starting to understand a little better...baby steps! Thanks!

[Tools]

Karis..

It's really so simple you will be surprised....

It's two watches in one..

First watch:
In reality the primary constant timekeeper is the 24 hour hand, based on 24hr time (some call it military time), and is always read off the outer bezel.
You can set it to whatever timezone you want although it is typically either set to your local time or Greenwich Mean time (hence GMT)

Second watch:
The Mercedes hour hand is read off the standard dial. This hand can be set anytime, to any timezone desired by pulling the stem out to the second detent...the watch continues to run and keep accurate time..

When you travel through a timezone, you adjust the mercedes hand and read the new timezone there (inner dial).....the 24 hour hand stays constant at your original time (outer bezel).

The minute and seconds hands are shared by both watches because that is constant the world over.

[SPACE-DWELLER]

When traveling, you can the quickly adjust the 12 hour hand back and forwards in 1-hour increments by pulling the crown out in its first position. The advantage is that the second's hand won't stop by doing this.

So now you have TWO time zones:

The GREEN hand tells you HOME time, and the "normal" hand that you adjust to another time zone tells you the time zone you are travelling in.

A THIRD time zone can be read off the bezel by turning it. For example, if you say that USA is 9 hours behind Danish time, you can turn the bezel 9 hours clockwise, and the green hand will tell you what time it is the USA, read off the bezel.

[rays0079]

Hope this link can help.

http://fejack.net/misc/gmt24/gmt24.htm

[frostie]

Originally Posted by rays0079

Hope this link can help.

http://fejack.net/misc/gmt24/gmt24.htm

That's the link that i was searching for. Thanks a lot for sharing with us

[Mike734]

I love my GMT. I keep zulu (GMT) with the 24 hour hand and local time with the hour hand. I thinking of getting this GMT watch from Sinn. Check it out. http://www.watchbuys.com/store/pc/vi...?idproduct=307

[frostie]

Originally Posted by Mike734

I love my GMT. I keep zulu (GMT) with the 24 hour hand and local time with the hour hand. I thinking of getting this GMT watch from Sinn. Check it out. http://www.watchbuys.com/store/pc/vi...?idproduct=307

Gorgeous looking watch.

good choice i really like the simple looking dial and the small and elegant letters

[StanGMT]

My 1675 GMT is more 'basic' than the GMT II in that I can't adjust the hour (Mercedes) hand independently. I have always adusted the bezel so that the red 24 hr hand is set to GMT, wherever I am in the world - that keeps me 'grounded'!

Stan.

[nwhitmire]

Being new to the Rolex game I am really enjoying learing about these great watches. I currently have the Sub Date, and a DJ, and I'm wanting a SS/plat YM. Now I want one of these too.

This message board is great but it's going to cost me a ton of money!

[kcmo]

Wow, guys, thanks so much for the info and links

I certainly understand more today than I did yesterday when I posted this!

I really have a new appreciation for the GMT function, be it on a GMT II or an Explorer 2

Makes me want one!!!!

[frostie]

Originally Posted by kcmo

Wow, guys, thanks so much for the info and links

I certainly understand more today than I did yesterday when I posted this!

I really have a new appreciation for the GMT function, be it on a GMT II or an Explorer 2

Makes me want one!!!!

Glad you understood the GMT function.

GMT watches are definetely practical and fun to use