Blum & Grosjean 12 1/2'''

115 views

12 1/2”’ | Hand Wind | Cylinder | No Seconds

 

  • Listing ID: 3097
  • Manufacturer / Brand: Blum & Grosjean
  • Caliber: 12 1/2'''
  • Size in French Lignes: 12 1/2'''
  • Size range mm largest diameter: 22 - 31 mm
  • Shape: Round
  • Winding: Manual (Crown)
  • Hands Setting: Crown with lever
  • Seconds Hand: None
  • Escapement: Cylinder
  • Date, Day, Month...: None
  • Jewels: 10
  • Setting Lever Screw/Pin Position: Left
  • Balance Position: Left (240 - 360°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Brass
  • Power Reserve: Unknown
  • Production Period: Unknown, probably around 1890
  • Identification: Marked on the dial side with FABRIQUE D ARTS, a Blum & Grosjean trademark registered in 1883. According to Pritchard, the company produced its own movements from 10 to 14''' in diameter.
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-29#post-3886457
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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Your email address will not be published.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