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