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: 74

Manufacturer: Non-Magnetic Watch Co. Question Mark
Manufacturer Location: Geneva, Switzerland and USA Question Mark
Movement Serial Number: 52071 Question Mark
Grade: 74 Question Mark
Model: 1 Question Mark
Estimated Production Year: Login to View for Free Question Mark
Run Quantity: Login to View for Free Question Mark
Grade/Model Run: Login to View for Free Question Mark
Grade/Model Total Production: Login to View for Free Question Mark
Variant Est. Production: Login to View for Free Question Mark
Size: 16s Question Mark
Jewels: 15j Question Mark
Jewel Material: Login to View for Free Question Mark
Jewel Setting: Login to View for Free Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Login to View for Free Question Mark
Movement Setting: Lever Question Mark
Wind Mechanism: Pendant Question Mark
Plate: 3/4 Plate Question Mark
Balance Type: Expansion Question Mark
Regulator: Login to View for Free Question Mark
Hairspring: Login to View for Free Question Mark
Standard Dial Type: Login to View for Free Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: No Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
U.S. Patents: Login to View for Free Question Mark
Movement Markings: Login to View for Free
Case: Various Question Mark
Run ID: 8.74G2.16S4.161M4.H4.L4.15J2 Question Mark
Database Version: v52.645 Question Mark
Advanced Metrics
Members Only Data. Login or create a free account to unlock.
Registry Population:
Scoped for This Run Only
2 (0.67%) Question Mark
Research Note: "Button Collar" Hairspring Stud, Burnished Jewels
13 Additional Member-Only Data Points Available

The following information is unlocked with a free account:

Estimated Production Year, Run Quantity, Grade/Model Run, Grade/Model Total Production, Variant Est. Production, Jewel Material, Jewel Setting, Movement Inlay Color, Regulator Type, Hairspring, Standard Dial Type, U.S. Patents, Movement Markings

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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.


MoatsJustin1 top-contributor 5448 · November 24, 2023

Serial Number 52071 was reported as accurate.