Buser / Frenca 20

67 views

12 1/2”’ | Automatic | Swiss Lever | Small Seconds |

Remarks:

  • Lateral anchor
  • Automatic as a module screwed onto base movement (caliber 15)
  • Base movement with diameter 8 3/4”’ and large movement retaining ring, which is firmly screwed to the movement

 

  • Listing ID: 1448
  • Manufacturer / Brand: Buser / Frenca
  • Caliber: 20
  • Size in French Lignes: 12 1/2'''
  • Size range mm largest diameter: 22 - 31 mm
  • Shape: Round
  • Winding: Automatic
  • Hands Setting: Crown
  • Seconds Hand: Small seconds
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: None
  • Jewels: 17, 21
  • Setting Lever Screw/Pin Position: Right
  • Balance Position: Bottom (120 - 240°)
  • Shock Protection: Incabloc
  • Beats per hour: 18,000
  • Balance Type: Monometallic screw balance
  • Power Reserve: Unknown
  • Production Period: According to Hampel from 1946
  • Identification: Listed in the "Official Catalogue of genuine Swiss Watch repair parts" from 1949 and in the Paulson catalog from 1950
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-46#post-6140314
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member JackDaniels83

Leave a Reply

Your email address will not be published. Required fields are marked *

Before being published, your comment will be checked by a moderator. Therefore you will not see it immediately!

Scroll to Top