Arnold & Son — Ultrathin Tourbillon

Ultrathin Tourbillon Red Gold Onyx

Produced 2026–present. Ultrathin Tourbillon Red Gold Onyx, reference 1UTBR.Z02A.C1375R, is a 2026 Arnold & Son release with a 41.5 mm 18K red gold (5N) case, polished black-onyx main dial with matt concave onyx subdial, black…

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Arnold & Son Ultrathin Tourbillon Red Gold Onyx 1UTBR.Z02A.C1375R

Reference1UTBR.Z02A.C1375R

BrandArnold & Son

FamilyUltrathin Tourbillon

Produced2026–present

StatusIn production

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