perpetual calendar

When in Rome

The Calendar Watch, Explained

If you thought figuring out the Gregorian calendar, with its short months and leap years, was hard, try building a mechanical timepiece that will do it. Fortunately, watchmakers never shy away from a challenge.

Do You Wanna Go to the Moon?

The A. Lange & Söhne Richard Lange Perpetual Calendar Terraluna

When the doors open on the annual SIHH watch fair in Geneva, there's a stampede of journalists to the A. Lange & Söhne booth to see what new timepiece miracles the Glashütte brand has introduced. The German brand never disappoints, and this year is no exception: the Richard Lange Perpetual Calendar Terraluna ($215,100+) is a spectacular timepiece, yet another tour de force from Glashutte. In this video Lange's Technical Director, Anthony de Haas, explains the masterpiece.

SIHH 2014

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