
Since their creation, the fully skeletonised Nebula collection in 38, 40 and 41.5 mm has been a star bursting with light.
The HM Collection is a tribute to timeless refinement, where sleek design meets exceptional mechanical craftsmanship. Defined by its pure lines and ultrathin profile, it embodies Arnold & Son’s dedication to elegance and technical mastery.
To echo the density of the dial, Arnold & Son has chosen one of its most iconic movements: the A&S1001 calibre. Like all movements crafted by the brand, it is entirely developed, produced, decorated, assembled, adjusted, and cased up within the manufacture in La Chaux-de-Fonds.
This exceptional calibre boasts an ultrathin architecture, with a total thickness of just 2.7 mm, allowing for a remarkably slim case measuring only 7.82 mm. Its refined construction is complemented by an oscillation frequency of 3 Hz and a 90-hour power reserve, ensuring both precision and longevity.
True to Arnold & Son’s commitment to fine watchmaking, the A&S1001 is adorned with exquisite decorations, even on its case-back side. The movement features radiating Côtes de Genève stripes emanating from the escapement—the very heart of the mechanism. The finishing include meticulously polished and lowered angles, which contrast beautifully with the circular-grained mainplate beneath, enhancing the visual depth and sophistication of the timepiece.
Since their creation, the fully skeletonised Nebula collection in 38, 40 and 41.5 mm has been a star bursting with light.
Ultrathin Tourbillon is one of the slimmest in the world. Presented in its purest expression, nothing distracts the eye from the hypnotic workings of the one-minute flying tourbillon.
By arranging the organs of Time Pyramid‘s movement from top to bottom instead of in a circle, Arnold & Son goes beyond the chronometric horizon to achieve an unparalleled feat of design.
DSTB, which stands for ‘Dial-Side True Beat’, is one of Arnold & Son’s most personal collections, revealing its true-beat second’s mechanism on the dial side.