Derby 33

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10 1/2”’ | Hand Wind | Swiss Lever | No Seconds |

Remarks:

  • Slightly different setting lever spring than shown in the movement catalogs. The setting lever spring of this movement is probably not original, but was replaced during a repair

 

  • Listing ID: 4077
  • Manufacturer / Brand: Derby
  • Caliber: 33
  • Size in French Lignes: 10 1/2'''
  • Size range mm largest diameter: 22 - 31 mm
  • Shape: Round
  • Winding: Manual (Crown)
  • Hands Setting: Crown
  • Seconds Hand: None
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: None
  • Jewels: 15
  • Setting Lever Screw/Pin Position: Left
  • Balance Position: Bottom (120 - 240°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Monometallic screw balance
  • Power Reserve: Unknown
  • Production Period: Unknown
  • Identification: Listed in the Flume K1 catalog in the 1947 part, in the "Official Catalogue of genuine Swiss Watch repair parts" from 1949 and in the Paulson from 1950.
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-16#post-2733855
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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