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The Encyclopedia of Horology

Grand complication pocket watch · Switzerland

Patek Philippe Calibre 89

Partially verified

Made for the firm's 150th anniversary with 33 complications; for decades presented as the most complicated portable timepiece.

Technical facts

Complications
33 (manufacturer count)
Examples
Four, in different case metals

Historical significance

  • Made for the firm's 150th anniversary with 33 complications; for decades presented as the most complicated portable timepiece.

Diagram

date ring, thirty-one positionsdate aperturedriving wheel and jumper
Schematic: calendar work under the dial. An outline schematic drawn to show the arrangement of the parts discussed here. It is not a dimensioned working drawing and does not depict a particular maker's calibre.

Sources & references

  1. Patek Philippe Museum publications

Where sources disagree, the disagreement is stated rather than resolved silently.