Felsa 52 I

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5 3/4”’ x 8 3/4”’ | Hand Wind | Swiss Lever | No Seconds |

Remarks:

  • The Flume K1 catalog lists three variants (I, II, III) of the caliber 52, which differ in their lever springs
  • In both movements of this caliber that I have, the setting lever spring is defective. This therefore appears to be vulnerable

 

  • Listing ID: 5126
  • Manufacturer / Brand: Felsa
  • Caliber: 52 I
  • Size: 5 3/4''' x 8 3/4''' (according to the manufacturer: 5 1/4''')
  • Shape: Form
  • Winding: Manual (Crown)
  • Hand Setting: Crown
  • Seconds Hand: None
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date & Day: None
  • Jewels: 15
  • Setting Lever Screw/Pin Position: Right
  • Balance Position: Right (0 - 120°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Bimetallic screw balance
  • Power Reserve: Unknown
  • Production Period: Unknown, probably around 1928
  • Identification: Listed in the Ebauches SA catalog from 1928.
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/#post-1119453
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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