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The Encyclopedia of Horology

Complication · Timing

Retrograde Seconds

Partially verified

A seconds hand that snaps back to zero every 30 or 60 seconds.

Definition

A seconds hand that snaps back to zero every 30 or 60 seconds.

Historical origin

Purely a visual complication designed to showcase mechanical virtuosity.

How it works

A fast-acting cam and return spring drive a small seconds hand through a frequent reset cycle.

Pocket watch context

Exceedingly rare novelty.

Wristwatch context

Found in avant-garde watches from brands like Franck Muller or Milus.

Identification

  • A seconds hand that constantly jumps back to start

Servicing notes

High-wear mechanism due to the frequency of the snap; requires specialized lubrication.

General guidance only. Complicated mechanisms should be assessed and serviced by a qualified watchmaker or clockmaker specialist, not adjusted at home.

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. de Carle, D., Watch and Clock Encyclopedia
  2. Britten, F. J., Old Clocks and Watches and Their Makers
  3. Horological Journal (British Horological Institute), technical articles

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