8 3/4”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Movement family:
  • Felsa 720: small seconds, no bevelled edges
  • Felsa 721: small seconds, bevelled edges
  • Felsa 725: indirect sweeping seconds, no bevelled edges
  • Felsa 726: indirect sweeping seconds, bevelled edges

• Listing ID: 7889
• Manufacturer / Brand: Felsa
• Caliber: 720
• 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: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1958
• Country: Switzerland
• Identification: Movement marked with F 720 under the balance wheel. Listed in the Flume K1 catalog in the part from 1958. Original datasheet available (undated).
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)