19 1/2”’ | Hand Wind | Swiss Lever | No seconds |

Remarks:

• The movement is also available with small seconds
• Predecessor of the Eterna 184

• Listing ID: 561
• Manufacturer / Brand: Eterna
• Caliber: Model No. 83
• Size in French Lignes: 19 1/2'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Left
• Balance Position: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1916
• Country: Switzerland
• Identification: Barrel bridge marked with ETERNA. Registered by Eterna on 07.06.1916 in the Swiss Official Gazette of Commerce as model No. 83. Model No. 83 is not an official caliber designation, but was used to register the design.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-58#post-8104880