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The Encyclopedia of Horology

Movement record · Switzerland

Rolex 1030

Partially verified

Automatic calibre with bidirectional rotor winding

Technical specifications

Diameter
Approx. 28.5 mm
Height
Not recorded in the sources consulted
Jewels
25 (variants differ)
Frequency
18,000 vph (2.5 Hz)
Power reserve
Approx. 42 hours
Winding
Automatic, bidirectional winding
Setting
Pendant set
Escapement
Swiss lever
Balance
Monometallic balance
Complications
Centre seconds, Date in some models

Identification features

  • Calibre number marked on the movement
  • Bidirectional winding introduced in this generation

Known variants

  • Chronometer-certified versions

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

Introduced bidirectional automatic winding to the house's production, a step in the development of its later automatic calibres.

Related photographs

Antique Rolex Gold Plated Pocket Watch – C1920s
Antique Rolex Gold Plated Pocket Watch – C1920s — WatchMuseum.org, © WatchMuseum.org, used with permission. WatchMuseum.org catalogue record
Antique Rolex Gold Plated Pocket Watch – C1920s
Antique Rolex Gold Plated Pocket Watch – C1920s — WatchMuseum.org, © WatchMuseum.org, used with permission. WatchMuseum.org catalogue record
Antique Rolex Gold Plated Pocket Watch – C1920s
Antique Rolex Gold Plated Pocket Watch – C1920s — WatchMuseum.org, © WatchMuseum.org, used with permission. WatchMuseum.org catalogue record

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

  1. de Carle, D., Watch and Clock Encyclopedia
  2. Period trade material catalogues and calibre reference compilations (edition-dependent)
  3. Published manufacturer technical documentation where available

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