Whats the big deal with the A, M or Z series for GMT2?

[Rolex_Crow]

I see there seem to be premiums for the different series for GMT2.

Whats the difference?

[keltzar]

It's quite silly really... fundamentally the same.

A-series(1999/2000) vs Z-series(2006/07): Z-series is a later variant (about 6yrs) with no pinholes Maybe it has a solid end-links compared to earlier A-series (not sure).

M-series(2007/08?) is truly rare. Produced after the announcement it would be discontinued ... and uses the current 3186 movement ... this one is for collectors. Worth it if its a 20-30% premium over the Z-series... but these days it can be as much as double.

And oh - M-series can be current model 116710 . The above refers to the previous 16710.

[dolphin010]

Hi,

pardon my ignorance. Which movement was the other GMT2 using (say for the A-D series?

Thanks.

Gong Xi Fa Cai

[seiko.citizen]

3185 if i recall correctly. if for a-d series, i believe the mov't changed to allow quickdate adjusting, but the GMT hand was stationary, and one had to move the bezel to offset the time.

[lthg25]

All GMT II does allow quick date sets. Only GMT 1 movement allows quick date sets and the movement is totally different!

[seiko.citizen]

thanks for letting me know.

[dolphin010]

Many thanks for all the clarifications.

[feudallordcult]

from what i can gather from my limited knowledge in auto watches, manufacture of a series gmt would be 1998 as opposed to m series which is manufactured in 07. so i guess the older the watch, likelihood of servicing may be required. other than the 3185 and 3186(in M series) think the movements are very robust and would serve the owner for many many years to come.

[seiko.citizen]

isnt A series GMT master and not GMT master II. M + Z series were cos some had the 3186 mov't instead of the 3185