Horological Meandering

Here we are in the end of the Fifties, when Breitling unveiled its world time watch, the Unitime first generation. 37 mm steel or gold case, true world time watch. A classic look, very appealing, at least from my point of view. The curious thing is that t...  

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While the series produced 2610 model was still called a "worldtime" watch by Breitling, it used no longer reference cities for a convenient use of the function. Though, at least prototypes seem to have been produced, with the under-glass city disk of ref....