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.
Manufacturer Location: Geneva, Switzerland and USA
Movement Serial Number: 51848
Grade: 74
Model: 1
Estimated Production Year: 1887
Run Quantity: 55
Grade/Model Run: 1 of 11
Grade/Model Total Production: 3,555
Variant Est. Production: 2,355 (16S-M1-15J-HNL)
Size: 16s
Jewels: 15j
Jewel Material: Ruby
Jewel Setting: Burnished Jewels
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: 3/4 Plate
Balance Type: Expansion
Regulator: Reed
Hairspring: Non-magnetic
Standard Dial Type: Single-Sunk
Adjusted: Yes
Adjusted to Position: No
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
U.S. Patents: 359093, 367158, D18722
Movement Markings: Geneva Nonmagnetic Watch Co Ld
New York
Paillard's Patent
Balance and Spiral
Case: Various
Run ID: 6.74G1.16S2.161M2.H2.L2.15J1
Database Version: v51.902
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
Registry Population: 1 (1.82%)
Research Note: "Button Collar" Hairspring Stud, Burnished Jewels

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