8 3/4”’ | Hand Wind | Swiss Lever | No Seconds |

Remarks:

• Movement also available with small seconds
• The Cyma / Tavannes caliber 1 is available in different other sizes and as Lépine (open face) and Savonnette (hunter), each with a different reference number

• Listing ID: 8109
• Manufacturer / Brand: Cyma / Tavannes
• Caliber: 1 Ref 816
• Size in French Lignes: 8 3/4'''
• Size range mm largest diameter: 0 - 22 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: 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 1920+
• Country: Switzerland
• Identification: Movement marked with Ref 816 under the balance wheel. Listed in the Classification Horlogère from 1936. Design registered 1920 by Tavannes Watch in the Swiss Official Gazette of Commerce as model no. 42.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)