
The new Arnold & Son Ultrathin Tourbillon Skeleton in rose gold builds upon the 2016 UTTE Skeleton, introducing refinements that enhance visual depth, legibility, and mechanical performance — with the movement’s power reserve now extended to 100 hours.

The 41.5mm 18K rose gold case, slightly reduced from the previous 42mm, retains its ultra-thin 8.34mm profile. The mirror-polished surfaces create striking light reflections, while the slimmer bezel further accentuates the openworked dial. The crown is engraved with the Arnold & Son emblem.

The fully skeletonized dial preserves the brand’s signature figure-eight symmetry, with a white opal hour-and-minute subdial at 12 o’clock and a reworked flying tourbillon at 6 o’clock. The tourbillon cage is newly designed in the shape of an anchor, a subtle nod to the brand’s maritime heritage. The removal of the seconds scale around the cage draws attention to the tourbillon’s pure mechanical architecture.

Powering the watch is the A&S8320 hand-wound movement, beating at 21,600 vibrations per hour with a power reserve increased from 90 to 100 hours. The movement measures just 3.3mm thick and features a variable-inertia balance wheel for enhanced chronometric stability. The mainplate is decorated with radiating Côtes de Genève finishing.
The watch is fitted with a blue alligator leather strap and produced in a limited edition of 28 pieces, priced at ≈ 70,000 EUR






Arnold & Son Ultrathin Tourbillon Skeleton
18K rose gold case, 41.5mm diameter, 8.4mm thickness, rose gold crown, sapphire crystal, skeletonized dial, blued steel hands, A&S8320 hand-wound movement, 29 jewels, 21,600 vph, 100-hour power reserve, blue alligator leather strap, folding clasp, water-resistant to 30 meters.
Complication: Tourbillon

The 41.5mm 18K rose gold case, slightly reduced from the previous 42mm, retains its ultra-thin 8.34mm profile. The mirror-polished surfaces create striking light reflections, while the slimmer bezel further accentuates the openworked dial. The crown is engraved with the Arnold & Son emblem.

The fully skeletonized dial preserves the brand’s signature figure-eight symmetry, with a white opal hour-and-minute subdial at 12 o’clock and a reworked flying tourbillon at 6 o’clock. The tourbillon cage is newly designed in the shape of an anchor, a subtle nod to the brand’s maritime heritage. The removal of the seconds scale around the cage draws attention to the tourbillon’s pure mechanical architecture.

Powering the watch is the A&S8320 hand-wound movement, beating at 21,600 vibrations per hour with a power reserve increased from 90 to 100 hours. The movement measures just 3.3mm thick and features a variable-inertia balance wheel for enhanced chronometric stability. The mainplate is decorated with radiating Côtes de Genève finishing.
The watch is fitted with a blue alligator leather strap and produced in a limited edition of 28 pieces, priced at ≈ 70,000 EUR






Arnold & Son Ultrathin Tourbillon Skeleton
18K rose gold case, 41.5mm diameter, 8.4mm thickness, rose gold crown, sapphire crystal, skeletonized dial, blued steel hands, A&S8320 hand-wound movement, 29 jewels, 21,600 vph, 100-hour power reserve, blue alligator leather strap, folding clasp, water-resistant to 30 meters.
Complication: Tourbillon