On September 17 Vacheron Constantin celebrated their 260th birthday, making them the oldest continuously operating watch brand. They celebrated the day by unveiling (after months of teaser images) the Reference 57260 Ė the most complicated watch ever made. While this one-of-a-kind marvel is making horological headlines this week, we thought it was a perfect time to find out about Vacheron Constantinís other significant release of 2015, the Harmony collection.…

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