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Inspired by Gunter Blumlein, IWC's CEO at the time, watchmaker Kurt Klaus developed the perpetual calendar module using just 82 components. link All adjustments for the perpetual calendar could be made via the crown – a world's first in link the industry. The dial featured a four-digit year display with century link slide that would advance once every 100 years. The watch was marketed with packaging containing a century slide for the 22, 23, and 24 centuries – genius.

It is one of the collections link where we've had the most requests for special editions or executions locally link in markets specifically it's interesting to note in Japan says Marietta. "We did I think 10 special editions link of the Chronomaster Open over the last five or six years there."