Reach for the stars with The Luna Magna by Arnold & Son

Luna Magna

In a starry sky, a large moon alternates between light and dark as it moves through its phases. Here, Arnold & Son presents its first three-dimensional moon made of marble and aventurine. Showcased on an aventurine glass dial, the moon changes majestically and with astronomical precision. It is the largest rotating moon ever built into a wristwatch, and a creation that benefits from the first-class watchmaking and decorative techniques of the Arnold & Son Manufacture.

Luna Magna features Arnold & Son’s first three-dimensional moon. With this original timepiece, the Swiss watchmaker with English roots aims to make a lasting impression by presenting the largest rotating moon ever created in relief for a wristwatch. Beneath an off-centered dial at 12 o’clock, which constitutes one of the house’s aesthetic signatures, Arnold & Son has placed a rotating sphere that accurately represents the appearance of the quarters of the moon against a starry backdrop that is more dazzling than a midsummer night sky.


  • Limited edition 28 pieces
  • Hand-stitched blue alligator leather strap
  • 18ct red gold case
  • Aventurine glass dial
  • Moon: 12mm in diameter, white marble half sphere & aventurine glass half sphere
  • Water resistant up to 30 meters

Our Watch specialist’s opinion

Arnold & Son are a brand which we at Ogden of Harrogate appointed in the first half of 2020. The quality, craftsmanship and traditional watchmaking skills are something which really shone out to us at Ogden’s and the newest release of the Luna Magna is no different. Having only 28 of these remarkable watches being produced it is something that most watch lovers will never achieve to get their hands on unless they are in the lucky few.

Arnold & Son

Named after John Arnold, English watchmaker of the 18th century renowned for his ingenuity and work on marine chronometers, Arnold & Son perpetuates his legacy, exploring contemporary ways to interpret traditional watch craftsmanship.

From its Manufacture based in La Chaux-de-Fonds, cradle of the Swiss watchmaking industry, Arnold & Son develops its timepieces in-house including its complicated calibres. The House established iconic collections such as the Time Pyramid with its unique architecture, the Nebula featuring a fully skeletonized movement, the HM Perpetual Moon displaying one of the biggest moon phases on the market or the Globetrotter, impressive three-dimensional worldtimer.

April 28, 2021 — Samantha Corcoran