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: 58366 Question Mark
Grade: 74 Question Mark
Model: 1 Question Mark
Estimated Production Date: 1887- Question Mark
Run Quantity: 80 Question Mark
Grade/Model Run: 5 of 11 Question Mark
Grade/Model Total Production: 3,555 Question Mark
Variant Est. Production: 2,355 (16S-M1-15J-HNL) Question Mark
Size: 16s Question Mark
Jewels: 15j Question Mark
Jewel Material: Ruby Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Balance Type: Expansion Question Mark
Regulator: Reed Question Mark
Hairspring: Non-magnetic Question Mark
Standard Dial Type: Single-Sunk 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: 359093, 367158, D18722 Question Mark
Movement Markings: Non-Magnetic Watch Co. of America
Paillard's Patent
Balance & Spring
Safety Pinion
Adjusted
Case: Various Question Mark
Run ID: 22.74G5.16S18.161M17.H14.L17.15J5 Question Mark
Database Version: v52.515 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
7.09 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
78.14 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
2.962% Question Mark
Registry Population:
Scoped for This Run Only
2 (2.50%) Question Mark

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Verification Reports for this Run

There are currently no verifications for this range.