JACOB & CO. / SN810.30.AB.AA.A
The Mystery Tourbillon 44MM — White Diamonds44 mm18K White Gold18 PiecesEra not confirmed
Jacob & Co. / Reference archive
The Mystery Tourbillon 44MM
Official Jacob & Co. reference catalogue.
JACOB & CO. / SN810.30.AB.AB.A
The Mystery Tourbillon 44MM — Tsavorites and White Diamonds 44mm44 mm18K White Gold18 PiecesEra not confirmed
JACOB & CO. / SN810.30.AB.UB.A
The Mystery Tourbillon 44MM — Amethyst44 mm18K White GoldPièce UniqueEra not confirmed
JACOB & CO. / SN810.30.AB.UC.A
The Mystery Tourbillon 44MM — Pink Sapphires44 mm18K White GoldPièce UniqueEra not confirmed
JACOB & CO. / SN810.40.AA.UA.A
The Mystery Tourbillon 44MM — Rainbow44 mm18K Rose GoldPièce UniqueEra not confirmed
Photographs follow the cited record. Shared source illustrations are labelled. “Current” and “Historical” are shown only where the source supports that classification; other entries are marked “Era not confirmed”. Catalogue coverage & sources