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

Remarks:

• Ref. 920 is the Savonnette (hunter) version of the movement, Ref. 921 the Lépine (open face) version
• Screw-set jewels (Chatons) on the bridge side

• Listing ID: 3246
• Manufacturer / Brand: Tavannes
• Caliber: 19’’’ 2.B Ref 920
• Size in French Lignes: 19'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1936
• Identification: Listed in the Classification Horlogère from 1936
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-27#post-3694734
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)