It's not always immediately obvious why particular complications find their way onto the mechanical wristwatch that might be viewed as indispensable, but for the air traveler, international corporate executive, news, finance, or communications personnel of the 1960’s, a watch with a 24-hour function - like this all original and freshly serviced Seiko 6117-6410 GMT here - must have carried a certain useful appeal.

 

Even during the present day, in the era of the smart phone, there exists a certain charisma to the GMT watch that appeals to vintage watch aficionados.  The 6117’s independent GMT red time zone hand (see pictures) is used in coordination with the inner rotating bezel to tell time in another time zone of the wearer’s choice. The wearer simply sets the inner bezel to the time they desire (ie: GMT is four hours ahead of EDT, so the inner bezel is set four hours ahead of EDT time), and the red hand moves along with the regular hour/minute hands.

 

It’s important to note that the red hand only makes a complete circle of the dial every 24 hours (the hour, minute, and separate time zone red hand all align at the 12 o’clock position when this occurs), so it moves more slowly than the hour hand. On the inner bezel are red and blue segments – indicating 12 hours of daylight – red – and 12 hours of darkness – blue!

 

The 6117’s independent GMT red time zone hand is used in coordination with the inner rotating bezel to tell time in another time zone of the wearer’s choice. The wearer sets the inner bezel to the time they desire (ie: GMT is four hours ahead of the U.S.’s EDT/EST, so the inner bezel is set four hours ahead of this time), and the red hand moves along with the regular hour/minute hands.

 

This Seiko 6117 comes with a leather rally strap, nylon NATO strap, Pelican travel case, and springbar tool.

1972 Seiko 6117-6410 Navigator Timer GMT Automatic

$0.00Price
  • DIAL: Original "resist" Seiko-signed black dial with red GMT hand – atypically, zero fading of the blue and red markers on the dial.  Dial lume shines brightly.  Date at 3 o’clock position works as designed.  Original hour, minute, and GMT hands; inner GMT chapter ring rotates smoothly.

     

    CASE: Original 41mm x 45mm stainless steel case in pre-loved condition, with original caseback; original “resist” caseback.

     

    CRYSTAL: New Seiko 6117-correct crystal, no scratches or blemishes.

     

    BAND: This Navigator Timer comes with a dark burgundy leather rally strap, as well as a dark blue and red nylon NATO strap - both feature stainless-steel hardware.

     

    MOVEMENT: Original Seiko 17-jewel 6117B automatic movement, manufactured in July 1972.  This watch was serviced in April 2020.

     

    CROWN: Original unsigned recessed stainless-steel crown.

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