Unitas 521

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5 3/4 x 8 3/4”’ | Hand Wind | Swiss Lever | No Seconds

 

  • Listing ID: 1681
  • Manufacturer / Brand: Unitas
  • Caliber: 521
  • Size in French Lignes: 5 3/4 x 8 3/4''' (according to manufacturer 5 1/3 x ...)
  • Size range mm largest diameter: 0 - 22 mm
  • Shape: Form
  • Winding: Manual (Crown)
  • Hands Setting: Crown
  • Seconds Hand: None
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: None
  • Jewels: 15
  • Setting Lever Screw/Pin Position: Right
  • Balance Position: Right (0 - 120°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Monometallic screw balance
  • Power Reserve: Unknown
  • Production Period: Around 1950
  • Identification: Dial side marked with Unitas logo and 521. Listed in the "Official Catalogue of genuine Swiss Watch repair parts" from 1949. Data sheet from 1951 is available.
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-43#post-5616377
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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