7 3/4”’ | Automatic | Swiss Lever | No Seconds |

Remarks:

• Movement family:
  • Zenith 1724: direct sweeping seconds
  • Zenith 1725: no seconds

• Listing ID: 4102
• Manufacturer / Brand: Zenith
• Caliber: 1725
• Size in French Lignes: 7 3/4'''
• Size range mm largest diameter: 0 - 22 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 25
• Setting Lever Screw/Pin Position: Left
• Balance Position: Right (0 - 120°)
• Shock Protection: Incabloc
• Beats per hour: 19,800
• Balance Type: Glucydur
• Power Reserve: Unknown
• Production Period: From approx. 1966
• Identification: Rotor marked with Zenith. Marked 1725 under the balance. Zenith data sheet available.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-15#post-2725807
• Country: Switzerland
• Contributor ©: Uhrforum.de member Colchicum