Arnold & Son — Ultrathin Tourbillon

Ultrathin Tourbillon Platinum Onyx

Produced 2026–present. Ultrathin Tourbillon Platinum Onyx, reference 1UTBX.Z03A.C1375C, is a 2026 Arnold & Son release with a 41.5 mm platinum (Pt950) case, polished black-onyx main dial with matt concave onyx subdial, black…

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Arnold & Son Ultrathin Tourbillon Platinum Onyx 1UTBX.Z03A.C1375C

Reference1UTBX.Z03A.C1375C

BrandArnold & Son

FamilyUltrathin Tourbillon

Produced2026–present

StatusIn production

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