New York Standard Watch Co.
New York Standard Watch Co. Grade 31
Grade 31 is a 7 Jewels Openface watch manufactured by New York Standard Watch Co.. The size 18s, Model 4 movement features. New York Standard Watch Co. manufactured a total of 150,000 Grade 31 movements in 2 distinctive runs.
Grade 31 Movement Characteristics
| Size | 18s |
|---|---|
| Jewels | 7 Jewels |
| Configuration | Openface |
| Finish | |
| Model | 4 |
| Setting | Lever |
| Adjusted | No |
| Profile Code | 18s-M4-7j-OL |
Grade 31 Production Info
| Total Production | 150,000 |
|---|---|
| Number of Runs | 2 |
| Production Years | 1894-1900 |
| First Serial | 800,001 |
| Last Serial | 1,250,000 |
| Largest Run | 100,000 |
| Smallest Run | 50,000 |
Research Notes
Introduced February 1889 (New 18s 7 Jewel Movement), Patent Friction Center Staff, Also available as a cased watch in nickel with snap bezel and back (No. 531), Available as Factory Cased in BHA96 catalog. Some Produced Without Serial Numbers. The 1898 S.F. Myers catalog lists both the Grade 31 movement ($5.63) and the "New Era" variation for $4.00 (cut shows movement marked "The New Era" without serial number).