Non-Magnetic Watch Co. Pocket Watch: Serial Number 56908 (Grade 73)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/non-magnetic-watch-co/56908

Access Date: November 13, 2024

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: 73

Manufacturer:	Non-Magnetic Watch Co.
Manufacturer Location:	Geneva, Switzerland and USA
Movement Serial Number:	56908
Grade:	73
Model:	1
Estimated Production Year:	1888
Run Quantity:	400
Grade/Model Run:	2 of 9
Grade/Model Total Production:	2,400
Variant Est. Production:	1,800 (16S-M1-16J-ONL)
Size:	16s
Jewels:	16j
Jewel Material:	Ruby
Jewel Setting:	Raised Gold Settings (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:	Yes
Adjusted # of Positions:	2
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 Adjusted
Case:	Various
Run ID:	16.73G2.16S12.161M11.O2.L11.16J2
Database Version:	v52.431
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	5.42
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	59.32
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	2.264%
Registry Population: Scoped for This Run Only	2 (0.50%)

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Production Metrics Tree: Grade 73

Target Profile: 16S-M1-16J-ONL-A2PTI

Non-Magnetic Watch Co. Grade 73 (All Variations): 2,400 ETP
16S: 2,400 100.00% 16s, Grade 73
16S-M1: 2,400 100.00% 16s, Grade 73, Model 1
16S-M1-16J: 2,400 100.00% 16s, Grade 73, Model 1, 16 Jewels
16S-M1-16J-ONL: 1,800 75.00% 16s, Grade 73, Model 1, 16 Jewels, Openface/Lever/Nickel	Other: 600 Other Configs or Unclassified
16S-M1-16J-ONL-A2PTI: 1,800 75.00%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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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.