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: Peoria

Private Label(s) in Run:

Wm. B. Hanson - Belle Plaine, Iowa

What is a Private Label?
Manufacturer: Non-Magnetic Watch Co. Question Mark
Manufacturer Location: Geneva, Switzerland and USA Question Mark
Movement Serial Number: 20442 Question Mark
Grade: Peoria Question Mark
Estimated Production Year: 1888 Question Mark
Run Quantity: 27,700 Question Mark
Grade/Model Run: 1 of 1 Question Mark
Grade/Model Total Production: 27,700 Question Mark
Size: 18s Question Mark
Jewels: 11j or 15j Question Mark
Case: Various Question Mark
Run ID: 3.G1.18S1.18M1.U3.U3.1115J1 Question Mark
Database Version: v52.465 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
83.40 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
937.29 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
34.843% Question Mark
Registry Population:
Scoped for This Run Only
29 (0.10%) Question Mark
Research Note: Mixed Production by the Peoria Watch Company Factory.

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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.


mlat2012 Supporter 55 · November 7, 2024

Serial Number 26994 was reported as accurate.

Anonymous · April 10, 2024

Serial Number 32463 was reported as accurate.

Anonymous · April 6, 2024

Serial Number 36940 was reported as accurate.

Anonymous · March 9, 2024

Serial Number 31796 was reported as accurate.

Anonymous · February 10, 2024

Serial Number 30699 was reported as accurate.

HerbertTrw Supporter 143 · December 17, 2023

Serial Number 26173 was reported as inaccurate.

Note: Note: this watch is marked as adjusted too

HerbertTrw Supporter 143 · December 17, 2023

Serial Number 26559 was reported as inaccurate.

Note: Note: this watch is marked as adjusted

HerbertTrw Supporter 143 · December 17, 2023

Serial Number 26559 was reported as accurate.

HerbertTrw Supporter 143 · December 17, 2023

Serial Number 26997 was reported as accurate.

WIZARDofWARLOCK Supporter 24 · December 7, 2023

Serial Number 38416 was reported as accurate.

Anonymous · April 10, 2023

Serial Number 25328 was reported as accurate.

HerbertTrw Supporter 143 · March 30, 2023

Serial Number 45475 was reported as inaccurate.

Note: onlf for Info: must be produced before May 9, 1898
(Date was encraved inside)
Curator Response: Estimated production dates are expected to be accurate within +/- 3 Years.

cbzimm Supporter 469 · December 14, 2022

Serial Number 37544 was reported as inaccurate.

Note: Movement marked Adjusted. Open Face. Correct that
it is Non-Magnetic and nickel.

5133Chris 3 · December 9, 2022

Serial Number 30789 was reported as accurate.

ewened 25 · October 17, 2022

Serial Number 26376 was reported as accurate.