GMT 1675, service dials, three variations

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springer
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GMT 1675, service dials, three variations

Post by springer »

Below are three variations of the GMT 1675 service dials. All three dials look basically the same in appearance. Prior to these service dials, I believe that Mark V, Mark VI and possibly Mark IV dials were used as service dials for the matte GMT 1675s from around 1966 until the end of production in 1979.

The GMT 1675 service dials are identified as:

1) the first variation of service dial had tritium markers with SWISS-T<25 printed at the bottom of the dial

2) the next service dial variation had luminova markers and was also marked SWISS-T<25

3) the third variation of the GMT 1675 service dials looked in appearance as the other two service dials and luminova markers but was marked "SWISS" at the bottom of the dial. (Referred to as the super-luminova dial.)

No matter which service dial was used on these GMT 1675s, all three have the same appearance as found in the dial photos below. The coronets on these service dials appear somewhat similar to the original Mark I dials, but upon closer scrutiny, the differences are apparent.
Attachments
service dial TRITIUM.small.jpg
service dial TRITIUM.small.jpg (104.6 KiB) Viewed 2764 times
service.Luminova.JPG
service.Luminova.JPG (59.02 KiB) Viewed 8078 times
service dial TRITIUM.jpg
service dial TRITIUM.jpg (58.83 KiB) Viewed 8078 times
service.super lum.jpg
service.super lum.jpg (55.95 KiB) Viewed 8078 times
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