If you believe time is nothing more than a human construct, and yours is a life governed by the phases of the moon, then you probably don’t wear a watch.


But what if you could see the current constellation of the earth, moon, and sun on your puny little arm? Game-changer. This timepiece from A. Lange & Söhne manages to cram the best bits of a solar system inside a rather elegant 45.5-millimetre pink or white gold frame.

Called the Richard Lange Perpetual Calendar “Terraluna”, it features an orbital moon-phase display, a perpetual calendar and benchmark precision to make sure you’ll never miss out on a good wax or wane again.

Lauded as a modern classic, the dial itself was actually inspired by Johann Heinrich Seiffert’s 1807 regulator from the world-famous timepiece collection of the Mathematics and Physics Salon.

With his ingenious designs, Seiffert helped transform Dresden into a hub of precision horology in the early 19th century, with a format so accurate that it was adopted not only by time-keeping services and observatories, but also by watchmaking manufactories where it was used for synchronising new timepieces.