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This little gem is a very recent acquisition, coming my way via Ebay and at what I consider to be a very reasonable price. In fact, when I won the auction I must admit to being a bit concerned as to what I'd actually bought, considering that final low price.
But any worries were put to rest when the watch arrived and I was very happy to remove the case-back and find a pristine 6117 17-jewel movement tucked away inside a perfectly clean interior.
As the name implies, this is a timepiece which allows the wearer to see what time it is in various major cities across the globe.
This is done by rotating the "city ring" or time zone (the one with the light blue and black names on it) where you are located via the crown in its normal un-pulled position.
The idea is to then line up your city/time zone with the red hand (which moves once around the dial in 24 hours) and then the time at any other location - including GMT - can be determined quite readily by reading off the time opposite that city or time-zone.
6117-6409 "Navigator", where the 24-hour internal bezel is moved so that GMT (or the local time at any place on earth, so long as you know it to start with) can be monitored by aligning that time with the red hand.
So the "World Time" 6117 was more for the international traveller who jetted across several time-zones to various locations whereas its "Navigator" cousin was aimed at those who wanted time at two locations - theirs and somewhere else in a different zone.
In addition to the 4 hands (sweep second, minute, hour and 24-hour) the dial displays a date-only window at the traditional 3-position.
Case-back is also stainless steel, as is the attractive and very comfortable folded-link bracelet, which tapers from its connections with the case to a slightly narrower width at the clasp, which is signed.
It runs beautifully, looks great and is a very nice example of another timepiece from Seiko's great 1970s range.