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psikat · 25 November 2010, 06:39 AM

I have read several assertions that the one of the advantages of the GMT II has over the I is that it reads 3 time zones simultaneously.

Without a 24 hr dial, can it really do that? I suppose one can literally read between the lines and use the 12 hr dial as a 24 hr as well, but the GMT II isn't purpose designed to read 3 zones. Am I right or am I missing something?

bmrisko · 25 November 2010, 06:53 AM

The GMT Master II does indeed have a 24 hour dial...

FinbarSaunders · 25 November 2010, 06:58 AM

It can read 2 at once (1 using the main hands, the other time zone using the 24hr green hand).

If you want to read a 3rd time-zone, you rotate the bezel by how many hours forwards or behind GMT, your 3rd time zone is.

Here's an example:
I am a TRF resident in the UK, so usually my hour hand is set to GMT, as is the green 24 hand of my most excellent timepiece, the GMT-IIc.

I travel to Egypt (+2 hrs GMT), so on the plane I advance the standard hour hand forwards by 2 hours. Now the main watch hands are showing me local (Egypt) time, whilst the green 24hr hand is still showing me the time back home in London. (Note - you read the green hand against the Bezel numbers, not the main watch face!).

Now suppose I want to know what local time it is in LA. I know that PST is 8hrs behind GMT. So I rotate the bezel 8 notches clock-wise. The green hand will then indicate to me what LA time is (read off the Bezel; not the watch face). The main hands of course will still be showing local (Egypt) time.

You cannot read 3 time-zones simultaneously, but the Bezel rotation does make it very quick to flip to a 3rd time-zone.

psikat · 25 November 2010, 07:14 AM

Thanks, Finbar. I was scrambling to see how I missed the 24hr dial

JBat · 25 November 2010, 07:21 AM

Quote:

Originally Posted by FinbarSaunders

It can read 2 at once (1 using the main hands, the other time zone using the 24hr green hand).

If you want to read a 3rd time-zone, you rotate the bezel by how many hours forwards or behind GMT, your 3rd time zone is.

Here's an example:
I am a TRF resident in the UK, so usually my hour hand is set to GMT, as is the green 24 hand of my most excellent timepiece, the GMT-IIc.

I travel to Egypt (+2 hrs GMT), so on the plane I advance the standard hour hand forwards by 2 hours. Now the main watch hands are showing me local (Egypt) time, whilst the green 24hr hand is still showing me the time back home in London. (Note - you read the green hand against the Bezel numbers, not the main watch face!).

Now suppose I want to know what local time it is in LA. I know that PST is 8hrs behind GMT. So I rotate the bezel 8 notches clock-wise. The green hand will then indicate to me what LA time is (read off the Bezel; not the watch face). The main hands of course will still be showing local (Egypt) time.

You cannot read 3 time-zones simultaneously, but the Bezel rotation does make it very quick to flip to a 3rd time-zone.

Great explanation.

EchoBlueUK · 25 November 2010, 07:58 AM

Quote:

Originally Posted by FinbarSaunders

It can read 2 at once (1 using the main hands, the other time zone using the 24hr green hand).

If you want to read a 3rd time-zone, you rotate the bezel by how many hours forwards or behind GMT, your 3rd time zone is.

Here's an example:
I am a TRF resident in the UK, so usually my hour hand is set to GMT, as is the green 24 hand of my most excellent timepiece, the GMT-IIc.

I travel to Egypt (+2 hrs GMT), so on the plane I advance the standard hour hand forwards by 2 hours. Now the main watch hands are showing me local (Egypt) time, whilst the green 24hr hand is still showing me the time back home in London. (Note - you read the green hand against the Bezel numbers, not the main watch face!).

Now suppose I want to know what local time it is in LA. I know that PST is 8hrs behind GMT. So I rotate the bezel 8 notches clock-wise. The green hand will then indicate to me what LA time is (read off the Bezel; not the watch face). The main hands of course will still be showing local (Egypt) time.

You cannot read 3 time-zones simultaneously, but the Bezel rotation does make it very quick to flip to a 3rd time-zone.

Very well explained. The rolex website overcomplicates this in their website's instructions. Your example explains it all perfectly.

StarSovereign · 25 November 2010, 08:38 AM

The GMT-II does indeed read three time zones. In order to, howver, you MUST use the rotating 24-hour bezel.

bmrisko · 25 November 2010, 10:56 AM

Quote:

Originally Posted by bmrisko

The GMT Master II does indeed have a 24 hour dial...

Whoops, I was thinking bezel the whole time I was reading the OP and typed dial. The correct procedure for reading the 3rd timezone w/ the bezel is explained above.

Art161 · 25 November 2010, 11:03 AM

Great explanation.

htc8p · 25 November 2010, 12:15 PM

they just said that since it has a rotating bezel. more of marketing than practical use.

Steelfish · 25 November 2010, 12:22 PM

Quote:

Originally Posted by FinbarSaunders

It can read 2 at once (1 using the main hands, the other time zone using the 24hr green hand).

If you want to read a 3rd time-zone, you rotate the bezel by how many hours forwards or behind GMT, your 3rd time zone is.

Here's an example:
I am a TRF resident in the UK, so usually my hour hand is set to GMT, as is the green 24 hand of my most excellent timepiece, the GMT-IIc.

I travel to Egypt (+2 hrs GMT), so on the plane I advance the standard hour hand forwards by 2 hours. Now the main watch hands are showing me local (Egypt) time, whilst the green 24hr hand is still showing me the time back home in London. (Note - you read the green hand against the Bezel numbers, not the main watch face!).

Now suppose I want to know what local time it is in LA. I know that PST is 8hrs behind GMT. So I rotate the bezel 8 notches clock-wise. The green hand will then indicate to me what LA time is (read off the Bezel; not the watch face). The main hands of course will still be showing local (Egypt) time.

You cannot read 3 time-zones simultaneously, but the Bezel rotation does make it very quick to flip to a 3rd time-zone.

Great explanation, thank you for sharing this.

hng · 25 November 2010, 04:18 PM

Finbar summed it up very well...
It's a great watch!

Morax · 25 November 2010, 06:30 PM

Great explanation indeed.. it just get a little more complicated when you are not resident of GMT zone because all times on the map are calculated +/- versus GMT. So a little mathematic skill is needed to set up 3rd time zone correctly...

Why some people still seek complications where it is not... sorry

bemik · 26 January 2011, 12:47 AM

Great explanation!!

25 November 2010, 06:39 AM	#1
psikat "TRF" Member Join Date: Mar 2009 Real Name: Kat Location: UK Watch: Seiko GS SD GMT Posts: 83	GMT II: 3 time zones? I have read several assertions that the one of the advantages of the GMT II has over the I is that it reads 3 time zones simultaneously. Without a 24 hr dial, can it really do that? I suppose one can literally read between the lines and use the 12 hr dial as a 24 hr as well, but the GMT II isn't purpose designed to read 3 zones. Am I right or am I missing something? __________________ Regards, Kat

25 November 2010, 07:14 AM	#4
psikat "TRF" Member Join Date: Mar 2009 Real Name: Kat Location: UK Watch: Seiko GS SD GMT Posts: 83	Thanks, Finbar. I was scrambling to see how I missed the 24hr dial __________________ Regards, Kat

25 November 2010, 08:38 AM	#7
StarSovereign "TRF" Member Join Date: Apr 2009 Real Name: Erik Location: Bay Area, CA Watch: 116234, 116710LN Posts: 936	The GMT-II does indeed read three time zones. In order to, howver, you MUST use the rotating 24-hour bezel. __________________ Submariner 116610LN - Black Dial & Stainless Steel DateJust 116234 - White Stick Dial & Roulette Wheel GMT-Master II 116710LN - Black Dial & Green "Fouth Hand"

25 November 2010, 11:03 AM	#9
Art161 "TRF" Member Join Date: Jun 2008 Real Name: Art Location: San Francisco Watch: Sundial Posts: 2,266	Great explanation. __________________ Rolex SS Oyster Perpetual no date, TT Datejust Member #13992 HM Power to the Superlative Panda, officially certified! HMPanda eats, shoots and leaves. Rolexers do it with perpetual movements.

25 November 2010, 04:18 PM	#12
hng "TRF" Member Join Date: Aug 2009 Real Name: HaNgat Location: Jakarta Watch: Sports Rolex Posts: 648	Finbar summed it up very well... It's a great watch! __________________ Cartier Tank / Suunto Stinger / 16014 / 16610LV / PAM 233 / 116520 / 14060M / 16710 / Omega Constellation

25 November 2010, 06:53 AM	#2
bmrisko "TRF" Member Join Date: Oct 2010 Location: TN Valley Watch: Too many... Posts: 490	The GMT Master II does indeed have a 24 hour dial...

25 November 2010, 06:58 AM	#3
FinbarSaunders Member Join Date: Sep 2010 Location: UK, Midlands Watch: Rolex GMT-IIc Posts: 69	It can read 2 at once (1 using the main hands, the other time zone using the 24hr green hand). If you want to read a 3rd time-zone, you rotate the bezel by how many hours forwards or behind GMT, your 3rd time zone is. Here's an example: I am a TRF resident in the UK, so usually my hour hand is set to GMT, as is the green 24 hand of my most excellent timepiece, the GMT-IIc. I travel to Egypt (+2 hrs GMT), so on the plane I advance the standard hour hand forwards by 2 hours. Now the main watch hands are showing me local (Egypt) time, whilst the green 24hr hand is still showing me the time back home in London. (Note - you read the green hand against the Bezel numbers, not the main watch face!). Now suppose I want to know what local time it is in LA. I know that PST is 8hrs behind GMT. So I rotate the bezel 8 notches clock-wise. The green hand will then indicate to me what LA time is (read off the Bezel; not the watch face). The main hands of course will still be showing local (Egypt) time. You cannot read 3 time-zones simultaneously, but the Bezel rotation does make it very quick to flip to a 3rd time-zone.

25 November 2010, 12:15 PM	#10
htc8p "TRF" Member Join Date: Feb 2009 Real Name: Bert Location: philippines Watch: 116710 ln Posts: 3,472	they just said that since it has a rotating bezel. more of marketing than practical use.

25 November 2010, 06:30 PM	#13
Morax "TRF" Member Join Date: Aug 2010 Real Name: Jiri Location: Czech Republic Watch: 116610LN Posts: 78	Great explanation indeed.. it just get a little more complicated when you are not resident of GMT zone because all times on the map are calculated +/- versus GMT. So a little mathematic skill is needed to set up 3rd time zone correctly... Why some people still seek complications where it is not... sorry

26 January 2011, 12:47 AM	#14
bemik "TRF" Member Join Date: Dec 2010 Real Name: Tommy Location: Seoul, Korea Watch: 116520 Black Posts: 337	Great explanation!! __________________ Everything happens for a reason. But some things just happen.

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