Pocket Watch Database
Illinois Grade 60
Grade 60 Movement Characteristics
- Size18s
- Jewels15j
- ConfigurationOpenface
- FinishGilt
- Model1 or 2 or 3 or 4 or 6 or 5
- SettingLever
- AdjustedNo
- Railroad GradeNo
Grade 60 Production Info
- Total Production21,050
- Number of Runs90
- IntroducedSpring 1887
- Production Years1882-1895
- First Serial302,201
- Last Serial1,270,800
- Largest Run1,600
- Smallest Run50
- Most Common Run100
Research Notes
1887LAM: Single-Sunk (Circle)
1890OY: Single-Sunk (Circle)
The May 1887 issue of The Keystone reports this grade was new to the market.
Meggers/Ehrhardt list Grade 60 as adjusted to temperature and isochronism. However, catalog descriptions do not support this claim. Additionally, no Grade 60 movements have been found marked "Adjusted."
When produced in the open face Model 3 design, the extra pinion was not jeweled. This maintains the jewel count of 15, supported by original catalog descriptions.
In the May 1890 issue of The Keystone, the Grade 60 is described in a company advertisement as "No. 60, 18 Size, O.F., Pendant Setting." The illustrated cut shows a Model 6.
1896ACB: 17 Jewels