Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/u.s.-watch-co.-waltham-mass/18540/movement
https://pocketwatchdatabase.com/search/result/u.s.-watch-co.-waltham-mass/18540/movement
Access Date: December 19, 2024
Due to the lack of existing factory records, our U.S. Watch Co. (Waltham, Mass) database has been reconstructed using observations of known watches.
As a result, the information may contain inaccuracies. Please let us know if you have details that can improve the database.
The United States Watch Co. of Waltham, Massachusetts should not be confused with the more common American Waltham Watch Co. If the movement is NOT marked "U.S. Watch Co." or "United States Watch Co." please conduct a lookup under the American Waltham Watch Company.
From the American Horology Archive:
U.S. Watch Co. (Waltham, Mass)
Grade: 26
| Manufacturer: | U.S. Watch Co. (Waltham, Mass) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 18540 | |
| Grade: | 26 | |
| Model: | 1888 | |
| Estimated Production Year: | 1889 | |
| Run Quantity: | 70 | |
| Grade/Model Run: | 2 of 2 | |
| Grade/Model Total Production: | 170 | |
| Size: | 18s | |
| Jewels: | 11j | |
| Jewel Setting: | Burnished Jewels | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Movement Setting: | Pendant | |
| Plate: | 3/4 Plate | |
| Regulator: | Micrometric | |
| Hairspring: | Flat | |
| Adjusted: | No | |
| Railroad Grade: | No | |
| Movement Markings: | U.S. Watch Co. Waltham, Mass. Safety Pinion |
|
| Case: | Various | |
| Run ID: | 42.26G2.18S8.181888M8.O40.P40.11J3 | |
| Database Version: | v52.515 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 0.51 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 3.27 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.050% | |
| Registry Population: Scoped for This Run Only | 1 (1.43%) | |
Production Metrics Tree: Grade 26
Target Profile: 18S-M1888-11J-ONP-U
| U.S. Watch Co. (Waltham, Mass) Grade 26 (All Variations): 170 ETP |
| 18S: 170 100.00% 18s, Grade 26 |
| 18S-M1888: 170 100.00% 18s, Grade 26, Model 1888 |
| 18S-M1888-11J: 170 100.00% 18s, Grade 26, Model 1888, 11 Jewels |
| 18S-M1888-11J-ONP: 170 100.00% 18s, Grade 26, Model 1888, 11 Jewels, Openface/Pendant/Nickel |
| 18S-M1888-11J-ONP-U: 170 100.00% |
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There is 1 watch in the population registry for this run with 1 image.
|
|||||
Help Us Help Others By Improving the Database:
Does this information describe your movement accurately?
Verification Reports for this Run
There are currently no verifications for this range.
