11 1/2”’ | Automatic | Swiss Lever | Small Seconds |

Remarks:

• Movement family:
  • Felsa 410: Small seconds
  • Felsa 420: Sweeping seconds
• First rotor automatic with bidirectional winding

 

• Listing ID: 3207
• Manufacturer / Brand: Felsa
• Caliber: 410
• Size: 11 1/2''', height 6 mm
• Shape: Round
• Winding: Automatic
• Hand Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date & Day: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Incabloc
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: 44 hours
• Production Period: 1942
• Identification: Marked with F 410 on the dial side
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-28#post-3715599
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)