Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/u.s.-watch-co.-waltham-mass/95489/movement
https://pocketwatchdatabase.com/search/result/u.s.-watch-co.-waltham-mass/95489/movement
Access Date: December 24, 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: 40
| Manufacturer: | U.S. Watch Co. (Waltham, Mass) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 95489 | |
| Grade: | 40 | |
| Model: | 1888h | |
| Estimated Production Year: | 1893 | |
| Run Quantity: | 50 | |
| Grade/Model Run: | 6 of 6 | |
| Grade/Model Total Production: | 450 | |
| Variant Est. Production: | 50 (18S-M1888H-16J-HNL-U) | |
| Size: | 18s | |
| Jewels: | 16j | |
| Jewel Material: | Ruby | |
| Jewel Setting: | Screw-Set | |
| Movement Configuration: | Hunting | |
| Movement Finish: | Nickel | |
| Movement Setting: | Lever | |
| Plate: | Full Plate | |
| Train: | Quick | |
| Regulator: | Micrometric | |
| Hairspring: | Breguet | |
| Standard Dial Type: | Double-Pressed | |
| Adjusted: | No | |
| Railroad Grade: | No | |
| Movement Markings: | U.S. Watch Co. Waltham, Mass. |
|
| Case: | Various | |
| Run ID: | 148.40G6.18S63.M55.H104.L104.16J7 | |
| Database Version: | v52.526 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 1.35 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 9.00 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.132% | |
| Registry Population: Scoped for This Run Only | 2 (4.00%) | |
Production Metrics Tree: Grade 40
Target Profile: 18S-M1888H-16J-HNL-U
| U.S. Watch Co. (Waltham, Mass) Grade 40 (All Variations): 450 ETP | |||
| 18S: 450 100.00% 18s, Grade 40 |
|||
| 18S-M1888H: 450 100.00% 18s, Grade 40, Model 1888h |
|||
| 18S-M1888H-16J: 400 88.89% 18s, Grade 40, Model 1888h, 16 Jewels |
Other: 50
Other Jewels or Unclassified |
||
| 18S-M1888H-16J-HNL: 290 64.44% 18s, Grade 40, Model 1888h, 16 Jewels, Hunting/Lever/Nickel |
Other: 110
Other Configs or Unclassified |
||
| 18S-M1888H-16J-HNL-U: 50 11.11% | Other: 240
Other Adjustments or Unclassified |
||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 2 watches in the population registry for this run with 1 image.
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Verification Reports for this Run
The following reports have been graciously submitted by dedicated members in reference to this production run. These reports are useful to verify data and track inaccuracies that require further research. Please note that reports may contain inaccurate information or assumptions that must be dilligently considered with other available sources.
fgicaep 1 · March 4, 2024
Serial Number 95461 was reported as inaccurate.
Note: Jeweling is not correct. Jeweling is 16/17J.
Grade number is not correct.
Dial configuration is not correct.
Model number 1888H is not a valid U.S. Watch Co.
model number. This looks like a AWWCo model
number.
Grade number is not correct.
Dial configuration is not correct.
Model number 1888H is not a valid U.S. Watch Co.
model number. This looks like a AWWCo model
number.
Curator Response: After re-evaluating images of #95461 from the Live Auctioneers listing, it is evident that this one was erroneously cataloged as a 15-Jewel movement. As you indicated, the presence of an upper center jewel suggests a 16-Jewel (more likely) or 17-Jewel movement. The closest known grade classification with these traits is Grade 40. The U.S. Watch Co. did not maintain any publicly known model designations. For this reason, the 1888H classification is derived from the origin year for this particular model, with the "H" to reference the hunting model, distinguishing it from the 18-Size open face model introduced the same year.
Changes since this report was submitted:
Grade changed from 44 to 40
Jewels changed from 15j to 16j
