📅 Thursday, October 15, 2026
Unveiled in 2015 by Vacheron Constantin, the Reference 57260 pocket watch features an astonishing 57 distinct complications and took eight years to design and build. Among its most groundbreaking innovations is a fully mechanical Hebrew perpetual calendar, which required entirely new mathematical formulas to synchronize complex lunar and solar cycles. Weighing nearly a kilogram, this bespoke marvel stands as the most complicated mechanical watch ever created.
Category: Record Breaker
Disclaimer: Every effort has been made to keep these watch facts accurate, but the world of horology is full of myths, disputed stories, and fascinating trivia. Consider these facts a starting point for discovery rather than the final word. If you have corrections or additional insights, let us know—we’re always happy to keep the record ticking in the right direction.
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