Non-Magnetic Watch Co. Pocket Watch: Serial Number 51848 (Grade 74)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/non-magnetic-watch-co/51848

Access Date: December 10, 2023

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:	51848
Grade:	74
Model:	1
Estimated Production Year:	1887
Run Quantity:	55
Grade/Model Run:	1 of 11
Grade/Model Total Production:	3,555
Variant Est. Production:	2,355 (16S-M1-15J-HNL)
Size:	16s
Jewels:	15j
Jewel Material:	Ruby
Jewel Setting:	Burnished Jewels
Movement Configuration:	Hunting
Movement Finish:	Nickel
Movement Inlay Color:	Gilt
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:	Geneva Nonmagnetic Watch Co Ld New York Paillard's Patent Balance and Spiral
Case:	Various
Run ID:	6.74G1.16S2.161M2.H2.L2.15J1
Database Version:	v51.902
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	6.92
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	78.14
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	2.962%
Registry Population:	1 (1.82%)
Research Note: "Button Collar" Hairspring Stud, Burnished Jewels

Value Guide

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Production Metrics Tree: Grade 74

Target Profile: 16S-M1-15J-HNL-ATI

Non-Magnetic Watch Co. Grade 74 (All Variations): 3,555 ETP
16S: 3,555 100.00% 16s, Grade 74
16S-M1: 3,555 100.00% 16s, Grade 74, Model 1
16S-M1-15J: 3,555 100.00% 16s, Grade 74, Model 1, 15 Jewels
16S-M1-15J-HNL: 2,355 66.24% 16s, Grade 74, Model 1, 15 Jewels, Hunting/Lever/Nickel	Other: 1,200 Other Configs or Unclassified
16S-M1-15J-HNL-ATI: 2,355 66.24%

Population Registry for This Run

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