Pocket Watch Database

Illinois Grade 770


Photo Contributed By 23Greenwich
Grade 770 is a 23j Openface watch maufacturered by Illinois. The size 16s, Model 9 movement features a nickel finish and is adjusted to 6 positions, isochronism and temperature. During the time the watch was manufactured, it would have qualified for railroad service and is considered to be railroad grade.

Grade 770 Movement Characteristics

  • Size16s
  • Jewels23j
  • ConfigurationOpenface
  • FinishNickel
  • Model9
  • SettingLever
  • AdjustedYes
  • Railroad GradeYes

Grade 770 Production Info

  • Total Production50
  • Number of Runs1
  • Production Years1912-1912
  • First Serial2,470,601
  • Last Serial2,470,650
  • Largest Run50
  • Smallest Run50
  • Most Common Run50