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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/u.s.-watch-co.-waltham-mass/21391
Access Date: May 08, 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.

From the American Horology Archive:
U.S. Watch Co. (Waltham, Mass) Grade 48 Pocket Watch
U.S. Watch Co. (Waltham, Mass)

Grade: 48

Manufacturer: U.S. Watch Co. (Waltham, Mass)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 21391
Grade: 48
Model: 1888h
Estimated Production Year: 1888
Run Quantity: 1,500
Grade/Model Run: 1 of 10
Grade/Model Total Production: 15,100
Size: 18s
Jewels: 7j
Movement Configuration: Hunting
Movement Finish: Gilt
Movement Setting: Lever
Plate: Full Plate
Train: Quick
Regulator: Plain
Hairspring: Flat
Adjusted: No
Railroad Grade: No
Movement Markings: U.S. Watch Co.
Waltham, Mass.
Case: Various
Run ID: 43.48G1.18S8.M2.H2.L2.7J8
Database Version: v52.270
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 45.46
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 308.59
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 4.497%
Registry Population: 3 (0.20%)
Value Guide
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Production Metrics Tree: Grade 48

Target Profile: 18S-M1888H-7J-HGL-U

U.S. Watch Co. (Waltham, Mass) Grade 48 (All Variations): 15,100 ETP
18S: 15,100 100.00%
18s, Grade 48
18S-M1888H: 15,100 100.00%
18s, Grade 48, Model 1888h
18S-M1888H-7J: 15,100 100.00%
18s, Grade 48, Model 1888h, 7 Jewels
18S-M1888H-7J-HGL: 15,100 100.00%
18s, Grade 48, Model 1888h, 7 Jewels, Hunting/Lever/Gilt
18S-M1888H-7J-HGL-U: 15,100 100.00%

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 3 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.

Anonymous · August 4, 2023

Serial Number 21861 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · July 29, 2023

Serial Number 21461 was reported as accurate.

amcfarlane Supporter 32 · March 15, 2023

Serial Number 21826 was reported as inaccurate.

Note: My watch has serial number 21826. The movement is
marked U.S. Watch Co. (across the top) and Waltham
Mass (on the bottom). The serial # is in the
appropriate place corresponding to the pictures on
the PWD site. However, my watch is clearly
Jeweled. There are four pin protrusions in the
full plate movement. All four are jeweled. The PWD
site has my watch as a seven Jewel movement. I
dont think that is accurate. My email is
pjackmac123 *****@gmail.com. Thanks. Andy
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.
U.S. Watch Co. (Waltham, Mass) Grade 48 Pocket Watch