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Patek Philippe

GREAT research!

 

I did a similar analysis for ref. 605HU world time pocket watches on an excel file - 28 examples of which are known out of a total of 179 pieces produced over a period of 20~25 years. It was believed that Louis Cottier made a total of 455 world time movements that were cased up in pocket watches, wristwatches, and a few clocks.  

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