Pocket Watch Database

Due to the lack of existing factory records, our Non-Magnetic 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:

Non-Magnetic Watch Co.

Grade: 96

Manufacturer: Non-Magnetic Watch Co. Question Mark
Manufacturer Location: Geneva, Switzerland and USA Question Mark
Movement Serial Number: 325852 Question Mark
Grade: 96 Question Mark
Model: 2 Question Mark
Estimated Production Year: 1893 Question Mark
Run Quantity: 3,000 Question Mark
Grade/Model Run: 1 of 1 Question Mark
Grade/Model Total Production: 3,000 Question Mark
Size: 16s Question Mark
Jewels: 11j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Lever Question Mark
Plate: Bridge Plate Question Mark
Bridge Type: Center Question Mark
Regulator: Plain Question Mark
Hairspring: Non-magnetic Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
U.S. Patents: 359093, 367158, D18723, 384668, 384669, 384670 Question Mark
Movement Markings: Non-Magnetic Watch Co. of America
Paillard's Pat. Balance & Spring
Safety Pinion
Case: Various Question Mark
Run ID: 75.96G1.16S71.162M13.O22.L61.11J2 Question Mark
Database Version: v52.450 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
9.03 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
100.00 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
3.774% Question Mark
Registry Population:
Scoped for This Run Only
11 (0.37%) Question Mark
Research Note: Possible Mixed Run: 10-Jewel and 11-Jewel Movements. 11-Jewel movements are jeweled on the upper pallet fork pivot or the lower escape wheel. #325852: Verified as 11-Jewel with lower escape wheel jeweled.

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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.


pmtime Supporter 612 · January 6, 2024

Serial Number 326496 was reported as accurate.

MoatsJustin1 top-contributor 5269 · November 24, 2023

Serial Number 325729 was reported as accurate.