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Approximately 280 miles.

Collective Horology, a California-based community of watch enthusiasts, teamed up with Urwerk co-founders Martin Frei and Felix Baumgartner to create a watch that translated the idea of the space shuttle's launch link and landing sequence into a watch. Urwerk is the right fit for such a challenge, but they couldn't do it alone. Collective Horology brought in the Intrepid Sea, Air & Space Museum, where the Space Shuttle link Enterprise currently sits, to aid link in the development of the concept.

While only 3.95mm thick link the svelte 38-jewel 21202800 would usher in an era of rapid expansion and production for the historically small firm. One more thing the original 21202800 shared an odd connection to the brand's earliest perpetual link calendars the absence of a leap-year display. link It is here that we find our true scope the birth and early years of the Audemars Piguet Royal Oak Perpetual Calendar and more specifically those most seminal references that lacked a leap-year indication.