Illinois Watch Co. Model 4 Grade 173

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16 size (ca. 19 1/4”’) | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

  • Negative crown winding with lever
  • Screw-set jewels (Chatons)
  • Swan-neck fine regulator (Illinois Whipspring)
  • Crown wheel on the back of the barrel bridge
  • Model 4 is also available with a 3-finger wheel train bridge
  • Model 5 is the open face (Lépine) version of Model 4 (hunter = Savonnette)
  • Models 4 and 5 are also known as the Getty Model

 

  • Listing ID: 637
  • Manufacturer / Brand: Illinois Watch Co.
  • Caliber: Model 4 Grade 173
  • Size in French Lignes: 16 size (ca. 19 1/4''')
  • Size range mm largest diameter: > 40 mm
  • Shape: Round
  • Winding: Manual (Crown)
  • Hands Setting: Crown with lever
  • Seconds Hand: Small seconds
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: None
  • Jewels: 15
  • Setting Lever Screw/Pin Position: None (Negative Winding)
  • Balance Position: Bottom (120 - 240°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Bimetallic screw balance with Breguet hairspring
  • Power Reserve: Unknown
  • Production Period: 1896 – 1911 (47.319 Stück)
  • Identification: Movement marked ILLINOIS WATCH Co. Based on the serial number on this website: https://pocketwatchdatabase.com/search/result/illinois/1586607
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-57#post-7913992
  • External Link 2: https://pocketwatchdatabase.com/search/result/illinois/1586607
  • Country: U. S. A.
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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