Oil Pump 49.5MM

JACOB & CO. / OI100.21.AA.AA.B

Oil Pump 49.5MM — Black

49.5 mmBlack DLC Titanium88 PiecesEra not confirmed

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JACOB & CO. / OI100.30.AA.AA.B

Oil Pump 49.5MM — White Gold

49.5 mm18K White Gold88 PiecesEra not confirmed

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JACOB & CO. / OI100.30.AB.UA.A

Oil Pump 49.5MM — White Gold (Green)

49.5 mm18K White GoldPiece UniqueEra not confirmed

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JACOB & CO. / OI100.40.AA.AB.A

Oil Pump 49.5MM — Rose Gold (Green)

49.5 mm18K Rose Gold88 PiecesEra not confirmed

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JACOB & CO. / OI100.40.AA.AC.A

Oil Pump 49.5MM — Rose Gold

49.5 mm18K Rose Gold88 PiecesEra 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