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Re: Seamaster GMT 2535.80 *PIC*
In Response To: Seamaster GMT 2535.80 ()

: Does anyone know how long has this model been
: on the market ? Is the movement reliable ?

It was first available in stores in October 2004. It originally came with caliber 2628A, which is basically the standard co-axial caliber 2500 with the addition of the GMT function. 2628A was replaced with 2628B a few months after the model was released. 2628B has a slower beat rate and thus a slightly longer power reserve (about 3.5 hours).

There haven't been any reported problems with either 2628A or 2628B that I am aware of. The only reason the change was made was to make production easier and to give the watch the extra power reserve. All current production models use 2628B.

If you go to a store to look at one, you can see the 2628A or 2628B stamp in the metal through the sapphire caseback, though you may need a jeweler's loupe or magnifying glass to read it. Just look at the bottom left hand corner of the picture below and you'll see "2500B" stamped in the metal. The 2628 A or B stamp will be in the same location.

I hope this helps.

-John

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Seamaster GMT 2535.80
Re: Seamaster GMT 2535.80 *PIC*
Re: Seamaster GMT 2535.80
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