Non-Magnetic Watch Co. Pocket Watch: Serial Number 56581 (Grade 74)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/non-magnetic-watch-co/56581

Access Date: May 11, 2025

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:	56581
Grade:	74
Model:	1
Estimated Production Year:	Login to View for Free
Run Quantity:	Login to View for Free
Grade/Model Run:	Login to View for Free
Grade/Model Total Production:	Login to View for Free
Variant Est. Production:	Login to View for Free
Size:	16s
Jewels:	15j
Jewel Material:	Login to View for Free
Jewel Setting:	Login to View for Free
Movement Configuration:	Hunting
Movement Finish:	Nickel
Movement Inlay Color:	Login to View for Free
Movement Setting:	Lever
Wind Mechanism:	Pendant
Plate:	3/4 Plate
Balance Type:	Expansion
Regulator:	Login to View for Free
Hairspring:	Login to View for Free
Standard Dial Type:	Login to View for Free
Adjusted:	Yes
Adjusted to Position:	No
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
U.S. Patents:	Login to View for Free
Movement Markings:	Login to View for Free
Case:	Various
Run ID:	15.74G3.16S11.161M10.H9.L10.15J3
Database Version:	v52.645
Advanced Metrics
Members Only Data. Login or create a free account to unlock.
Registry Population: Scoped for This Run Only	4 (0.44%)
Research Note: #56314: Verified with 15 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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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 4 watches in the population registry for this run with 4 images. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account