11 1/2”’ | Hand Wind | Swiss Lever | Direct Sweeping Seconds |

Remarks:

• At 4.05 mm, slightly higher than the FHF 72 at 3.65 mm. Otherwise apparently largely identical
• Movement family:
  • FHF 73: no date
    There is also a much older FHF 73 with 10 1/2”’!
  • FHF 73-2: date (mounted on plate)
  • FHF 73-2 N: date (mounted on plate, small modifications)
  • FHF 73-4: date (countersunk in plate, small modifications)
  • FHF 73-4 N: date (countersunk in plate, small modifications)

• Listing ID: 3340
• Manufacturer / Brand: FHF
• Caliber: 73
• Size in French Lignes: 11 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central 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: Incabloc
• Beats per hour: 18,000
• Balance Type: Nickel
• Power Reserve: Approx. 42 hours
• Production Period: Probably around 1960, because original data sheet from 1959 available
• Identification: Dial side marked with FHF 73.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-26#post-3632172
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)