11 1/2”’ | Automatic | Swiss Lever | Direct Sweeping Lever | Date |

Remarks:

• Automatic with bidirectional winding
• Date without quick setting
• Movement family:
  • Favre-Leuba 101: Hand winding
  • Favre-Leuba 102: Hand winding, date
  • Favre-Leuba 103: Automatic
  • Favre-Leuba 104: Automatic, date

• Listing ID: 3596
• Manufacturer / Brand: Favre-Leuba
• Caliber: 104
• Size in French Lignes: 11 1/2''', height 6.1 mm
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: Date
• Jewels: 21
• 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: Unknown
• Production Period: From 1957
• Country: Switzerland
• Identification: Marked FL 104 under balance and Favre-Leuba on rotor.
• Contributor ©: Uhrforum.de member JackDaniels83
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-22#post-3312717