20”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Holes for three dial feet
• Other movement models by Faverges / Robert Frères:
  • Faverges / Robert Frères Model No. 2 1902 18’’’
  • Faverges / Robert Frères Model No. 3 19’’’
  • Faverges / Robert Frères Model No. 4 19’’’
• Same bridge shape as the 19”’ version, but slightly different base movement, presumably from FHF
• Movements had a swan-neck fine adjustment, which was removed
• The company became Fabrique Minerva, Robert Frères SA in 1923 and Minerva SA in 1929

• Listing ID: 5192
• Manufacturer / Brand: Faverges / Robert Frères
• Caliber: Model No. 4 20’’’
• Size: 20''', height 6.2 mm
• Shape: Round
• Winding: Manual (Crown)
• Hand Setting: Crown with lever
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date & Day: None
• Jewels: 16
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Probably around 1902
• Identification: Registered by Robert frères on 18.12.1902 in the Swiss Official Gazette of Commerce as model No. 4. Model No. 4 is not an official caliber designation, but was used to register the design. Registered again on 19.01.1918 under the same number in the Swiss Official Gazette of Commerce.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-62#post-8781593
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)