U.S. Watch Co. (Waltham, Mass) Pocket Watch: Serial Number 130950 (Grade 44)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/u.s.-watch-co.-waltham-mass/130950/movement

Access Date: November 27, 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: 44

Manufacturer:	U.S. Watch Co. (Waltham, Mass)
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	130950
Grade:	44
Model:	1888h
Estimated Production Year:	1894
Run Quantity:	500
Grade/Model Run:	11 of 11
Grade/Model Total Production:	5,100
Size:	18s
Jewels:	15j
Jewel Setting:	Gold Settings (Screw-Set)
Movement Configuration:	Hunting
Movement Finish:	Nickel
Movement Setting:	Lever
Plate:	Full Plate
Regulator:	Micrometric
Hairspring:	Breguet
Standard Dial Type:	Single-Pressed
Adjusted:	No
Railroad Grade:	No
Movement Markings:	U.S. Watch Co. Waltham, Mass.
Case:	Various
Run ID:	197.44G11.18S102.M74.H133.L155.15J60
Database Version:	v52.467
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	15.35
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	104.09
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	1.496%
Registry Population: Scoped for This Run Only	6 (1.20%)
Research Note: #130991: Owner Verified 15 Jewels During Service.

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Production Metrics Tree: Grade 44

Target Profile: 18S-M1888H-15J-HNL-U

U.S. Watch Co. (Waltham, Mass) Grade 44 (All Variations): 5,100 ETP

18S: 5,100 100.00%
18s, Grade 44

18S-M1888H: 5,100 100.00%
18s, Grade 44, Model 1888h

18S-M1888H-15J: 5,100 100.00%
18s, Grade 44, Model 1888h, 15 Jewels

18S-M1888H-15J-HNL: 5,100 100.00%
18s, Grade 44, Model 1888h, 15 Jewels, Hunting/Lever/Nickel

18S-M1888H-15J-HNL-U: 5,100 100.00%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 6 watches in the population registry for this run with 2 images. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

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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.

HerbertTrw Supporter 143 · December 20, 2023

Serial Number 130832 was reported as inaccurate.

Note: Maybe Grade 44?

Curator Response: It is either a Grade 44 (15 Jewels) or Grade 46 (11 Jewels). Unfortunately, this was during an era of production when these two grades looked nearly identical from the top plate, leading to ambiguity. Let me know if you are able to verify the correct jewel count under the dial. Thanks!

Changes since this report was submitted:

Grade changed from Unknown to 44

Jewels changed from 11j or 15j to 15j