Movement record · Switzerland
Rolex 1570
Partially verifiedAutomatic bridge calibre with free-sprung regulation
Technical specifications
- Diameter
- Approx. 28.5 mm
- Height
- Not recorded in the sources consulted
- Jewels
- 26
- Frequency
- 19,800 vph
- Power reserve
- Approx. 42 hours
- Winding
- Automatic with manual winding
- Setting
- Pendant set
- Escapement
- Swiss lever
- Balance
- Free-sprung Microstella-type balance
- Complications
- Centre seconds, Date in the 1575 variant, Hacking seconds in later versions
Identification features
- Free-sprung balance adjusted by rim nuts rather than an index
- Calibre marking on the movement
Known variants
- 1575 with date
- Later versions with hacking seconds
Servicing notes
Cleaning, lubrication, mainspring and pivot work belong with a qualified watchmaker working from calibre-specific documentation. Conserve original parts: replacing a worn component with a modern substitute changes the object, and refinishing plates or dials destroys evidence.
General guidance only. Antique movements should be serviced by a qualified watchmaker.
Historical significance
A long-lived automatic calibre generation whose free-sprung balance and robust construction set the pattern for later production.
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
- Period trade material catalogues and calibre reference compilations (edition-dependent)
- Published manufacturer technical documentation where available
Where sources disagree, the disagreement is stated rather than resolved silently.