12 size (approx. 17 3/4”’) | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Negative crown winding
• Screw-set jewels (Chatons)
• Swan-neck fine regulator (Illinois Whipspring)
• Center wheel bridge and mainspring barrel bridge are connected, as are the escape wheel bridge and fourth wheel bridge
• Model 4 Grade 404 is the corresponding Hunter/Savonnette variant
• Small lever on the edge of the movement at approx. 11:30, with which the movement can be brought into the winding position when removed from the watch case

 

• Listing ID: 578
• Manufacturer / Brand: Illinois Watch Co.
• Caliber: Model 3 Grade 404
• Size: 12 size (approx. 17 3/4''')
• Shape: Round
• Winding: Manual (Crown)
• Hand Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date & Day: None
• Jewels: 17
• Setting Lever Screw/Pin Position: None (Negative Winding)
• Balance Position: Right (0 - 120°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: 1911 - 1923 (65.510 pieces)
• Identification: Movement marked ILLINOIS WATCH Co. Based on the serial number on this website: https://pocketwatchdatabase.com/search/result/illinois/3558826
• External Link: https://pocketwatchdatabase.com/search/result/illinois/3558826
• External Link 2: https://pocketwatchdatabase.com/search/result/illinois/3558826
• Country: U. S. A.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)