If you’re looking to update your wrist wear, how about the recently launched ‘HM Perpetual Moon’ from Arnold & Son. The great orbital albino would approve, we think.

Arnold & Son’s Royal Collection pays tribute to the timepieces created in the early part of John Arnold’s life and the watches he made for King George III and members of the royal court. Under the guilloché moon disc and engraved moon you’ll find an exclusive Arnold & Son mechanical hand-wound movement – the calibre A&S1512 – a precise, big and 3D moonphase.

Equipped with a double barrel to yield 90 hours of power reserve, this is one of the most accurate moonphase’s on the market, with only one day’s deviation every 122 years (at which point a single push on the corrector will keep it in sync for another 122 years). So you’re safe until 2135, then.

Intriguingly the complication isn’t just a module added to the movement, but is fully integrated into the calibre, and a second moon display that’s visible via a transparent case back, with its graduated dial and pointer hand, makes for an even more precise setting.

Each HM Perpetual Moon is finished with a hand-stitched alligator strap. The nickel-silver movement, rhodium treated, has manually chamfered bridges with polished edges, fine circular graining and Côtes de Genève rayonnantes, and blued screws with polished, chamfered edges. One more giant step for mankind.

For more details visit www.arnoldandson.com.