New York Standard Watch Co.
New York Standard Watch Co. Standard 31
Standard 31 is a 7 Jewels Openface watch manufactured by New York Standard Watch Co.. The size 18s, Model 4 movement features a Nickel finish. New York Standard Watch Co. manufactured a total of 50,000 Standard 31 movements in 2 distinctive runs.
Standard 31 Movement Characteristics
| Size | 18s |
|---|---|
| Jewels | 7 Jewels |
| Configuration | Openface |
| Finish | Nickel |
| Model | 4 |
| Setting | Lever |
| Adjusted | No |
| Profile Code | 18s-M4-7j-ONL |
Standard 31 Production Info
| Total Production | 50,000 |
|---|---|
| Number of Runs | 2 |
| Production Years | 1889-1891 |
| First Serial | 75,001 |
| Last Serial | 175,000 |
| Largest Run | 25,000 |
| Smallest Run | 25,000 |
Research Notes
Open Face introduced in February 1889 (Keystone) and hunting introduced in July 1889 (Keystone). The nickel movements were later reissued in October 1894 with the Grade 30 and 31 classification.