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The Encyclopedia of Horology

Movement record · Russia

Poljot 3133

Partially verified

Manual chronograph derived from a Swiss cam-switched design

Technical specifications

Diameter
Approx. 30 mm
Height
Not recorded in the sources consulted
Jewels
23
Frequency
21,600 vph (3 Hz)
Power reserve
Approx. 42 hours
Winding
Manual, stem wind
Setting
Pendant set
Escapement
Swiss lever
Balance
Monometallic balance
Complications
Chronograph with minute register

Identification features

  • Cyrillic or Latin markings depending on market
  • Architecture closely related to a Swiss predecessor

Known variants

  • Variants with differing dials and registers

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

The principal Soviet mechanical chronograph, and a well-documented case of licensed tooling continuing production long after its origin.

Diagram

top plate or bridgespillar platebalance and cockwheel train between the plates
Schematic: plate and bridge layout. 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. 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.