Pocket Watch Database


We noticed that you entered a relatively short serial number.
"9543" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.

Due to the lack of existing factory records, our Tremont Watch Co. 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:
Tremont Watch Co. Grade Tremont Watch Co. Pocket Watch

Tremont Watch Co.

Grade: Tremont Watch Co.

Manufacturer: Tremont Watch Co. Question Mark
Manufacturer Location: Boston, Massachusetts Question Mark
Movement Serial Number: 9543 Question Mark
Grade: Tremont Watch Co. Question Mark
Variation: 15J.CompBalance Question Mark
Model: 1 Question Mark
Estimated Production Year: 1868 Question Mark
Run Quantity: 350 Question Mark
Grade/Model Run: 20 of 21 Question Mark
Grade/Model Total Production: 8,080 Question Mark
Variant Est. Production: 7,325 (18S-M1-15J-EGK-U-15J.COMPBALANCE) Question Mark
Size: 18s Question Mark
Jewels: 15j Question Mark
Movement Configuration: Adaptable Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Key Question Mark
Plate: Full Plate Question Mark
Regulator: Plain Question Mark
Hairspring: Flat Question Mark
Movement Markings: Tremont Watch Co.
Boston
Case: Various Question Mark
Run ID: 26.G21.18S26.181M25.E26.K26.15J18 Question Mark
Database Version: v52.465 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
24.32 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
730.00 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
44.177% Question Mark
Registry Population:
Scoped for This Run Only
4 (1.14%) Question Mark

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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.


dholmes Supporter 27 · September 12, 2022

Serial Number 9665 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 11j or 15j to 15j

Rcardkidz 4083 · October 3, 2021

Serial Number 9543 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 11j or 15j to 15j
Tremont Watch Co. Grade Tremont Watch Co. Pocket Watch