Arnold & Son Reveals New Perpetual Moon 41.5 Red Gold “Year of the Snake” Timepiece

According to the traditional Chinese calendar, 2025 is the Year of the Wooden Snake. To mark the occasion, Arnold & Son has created the Perpetual Moon 41.5 “Year of the Snake.”

Arnold & Son‘s Perpetual Moon 41.5 “Year of the Snake,” is an eight-piece timepiece series in red gold that combines a manufacture caliber with a large astronomical moon and aventurine glass dial base. The complication has become a brand signature, often accompanied by delicately worked artistic elements, here, depicting a masterful interpretation of the Year of the Snake.

Arnold & Son celebrates the Chinese zodiac calendar with Perpetual Moon 41.5 “Year of the Snake.” Under this element, the reptile foretells transformation and a need for self-improvement, combined with energy and introspection. It is a year of negotiations, shrouded in mystery and secrecy.

Prudence

In the inimitable tradition of Arnold & Son’s ornamental horology, this year is dedicated to a new “Chinese calendar” limited edition in the Perpetual Moon collection. The dial of the timepiece centers on an undulating snake. It faces the observer, wrapped around the branch of a tree that offers innumerable benefits: ginkgo biloba. The animal looks on calmly, nestled peacefully in a nocturnal setting.

Finesse

The snake is delicately hand-engraved into a block of 18-karat rose gold and set against a blue aventurine glass dial. Its fine scales, forked tongue, and broad, flat head are depicted with realism. The large, mother-of-pearl moon, also rendered realistically with its shadows, is overlaid with Super-LumiNova. It illuminates an aventurine glass sky and is surrounded by the constellations of Ursa Major and Cassiopeia, which are also painted with luminescent material.

The choice of these star patterns is a direct allusion to the history of marine chronometer-maker John Arnold. They have served as guiding lights since the dawn of time. Midway between them lies the Pole Star, which unerringly indicates the north. Here, the importance of the stars in determining periods, thresholds, and symbols in the Chinese zodiac calendar forms a unique point of cultural and graphic convergence.

Excellence

On the case back, a secondary display of the phases of the moon allows fast and accurate adjustment of the complication. The manually-wound caliber that powers Perpetual Moon 41.5 Red Gold “Year of the Snake” tracks the age of the moon with exceptional accuracy. The total duration of a lunar cycle is 29 days, 12 hours, 44 minutes and 2.8 seconds. Arnold & Son has approached this so closely that it would take 122 years for this movement, if constantly wound up, to accumulate a 24-hour discrepancy between the display and astronomical reality.

Like all Arnold & Son’s movements, the A&S1512 caliber was entirely developed, produced, decorated, assembled, adjusted, and finished at the manufacture in La Chaux-de-Fonds. This caliber uses two barrels and offers an oscillation frequency of 3 Hz, giving a 90-hour power reserve.

Arnold & Son
www.arnoldandson.com | @arnoldandson

Named after John Arnold, English watchmaker of the 18th century renowned for his ingenuity and work on marine chronometers, Arnold & Son perpetuates today 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 calibers.

The House established iconic collections such as the Time Pyramid with its unique architecture, the Nebula featuring a fully skeletonized movement, the Perpetual Moon and the Luna Magna displaying among the most spectacular moon phases on the market or the Globetrotter, impressive three-dimensional worldtimer. The twenty plus calibers presented to date by Arnold & Son have all been conceived, designed, developed, machined, decorated, assembled, and adjusted by its sister Manufacture, La Joux-Perret. This independence and creativity demonstrate the House’s ability to perpetuate John Arnold’s exceptional inventions.

All images © 2025, courtesy of Arnold & Son.

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