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: 59211
Grade: 74
Model: 1
Estimated Production Year: 1889
Run Quantity: 400
Grade/Model Run: 7 of 11
Grade/Model Total Production: 3,555
Variant Est. Production: 1,200 (16S-M1-15J-ONL)
Size: 16s
Jewels: 15j
Jewel Material: Ruby
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Nickel
Movement Inlay Color: Black
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: Non-Magnetic Watch Co. of America
Paillard's Patent
Balance & Spring
Safety Pinion
Adjusted
Case: Various
Run ID: 29.74G7.16S25.161M24.O3.L24.15J7
Database Version: v52.270
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
3.61
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
38.98
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.509%
Registry Population: 5 (1.25%)

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Verification Reports for this Run

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