Complication · Time zones
Time Zone Selector
Partially verifiedA mechanism allowing for the rapid switching between different pre-set time zones.
Definition
A mechanism allowing for the rapid switching between different pre-set time zones.
Historical origin
An evolution of the GMT watch for the frequent traveller.
How it works
A pusher or a specialized crown allows the local hour hand to jump in one-hour increments without affecting minutes or seconds.
Often linked to a city ring.
Pocket watch context
None.
Wristwatch context
A key feature of travel watches like the Patek Philippe Travel Time or Omega Sky-Dweller.
Identification
- A dedicated pusher on the case side
- Jumping local hour hand
Servicing notes
The jumping mechanism must be robust to handle frequent use.
General guidance only. Complicated mechanisms should be assessed and serviced by a qualified watchmaker or clockmaker specialist, not adjusted at home.
Related photographs
No confidently matched photograph of this subject has been found yet. These photographs show a closely related record, and are not examples of the type described on this page.
Sources & references
- de Carle, D., Watch and Clock Encyclopedia
- Britten, F. J., Old Clocks and Watches and Their Makers
- Horological Journal (British Horological Institute), technical articles
Where sources disagree, the disagreement is stated rather than resolved silently.