Astronomia Four-Axis Tourbillon

JACOB & CO. / AT180.30.AA.UA.A

Astronomia Four-Axis Tourbillon — White Gold

47 mm18K White Gold and Single-block Sapphire CasebandPiece UniqueEra not confirmed

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JACOB & CO. / AT180.40.AB.AA.A

Astronomia Four-Axis Tourbillon — Rose Gold

47 mm18K Rose Gold and Single-block Sapphire Caseband18 PiecesEra not confirmed

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JACOB & CO. / AT180.40.AB.AB.A

Astronomia Four-Axis Tourbillon — Rose Gold (Clear)

47 mm18K Rose Gold and Single-block Sapphire Caseband6 PiecesEra not confirmed

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JACOB & CO. / AT180.40.AB.AC.A

Astronomia Four-Axis Tourbillon — Rose Gold (Green)

47 mm18K Rose Gold and Single-block Sapphire Caseband6 PiecesEra not confirmed

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JACOB & CO. / AT180.40.AB.AD.A

Astronomia Four-Axis Tourbillon — Rose Gold (Red)

47 mm18K Rose Gold and Single-block Sapphire Caseband6 PiecesEra not confirmed

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JACOB & CO. / AT180.40.AB.UA.A

Astronomia Four-Axis Tourbillon — Mother of Pearl & Blue Aventurine

47 mm18K Rose Gold and Single-block Sapphire CasebandPièce UniqueEra not confirmed

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JACOB & CO. / AT180.40.AB.UB.A

Astronomia Four-Axis Tourbillon — Opal

47 mm18K Rose Gold and Single-block Sapphire CasebandPièce UniqueEra not confirmed

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JACOB & CO. / AT180.40.AB.UD.A

Astronomia Four-Axis Tourbillon — Labradorite

47 mm18K Rose Gold and Single-block Sapphire CasebandPièce UniqueEra not confirmed

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JACOB & CO. / AT180.40.AB.UE.A

Astronomia Four-Axis Tourbillon — Hematite

47 mm18K Rose Gold and Single-block Sapphire CasebandPièce UniqueEra not confirmed

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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