Non-Magnetic Watch Co. Pocket Watch: Serial Number 62018 (Grade 74)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/non-magnetic-watch-co/62018

Access Date: May 16, 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: 74

Private Label(s) in Run:

Hammersmith & Field - S.F. Cala.

What is a Private Label?

Manufacturer:	Non-Magnetic Watch Co.
Manufacturer Location:	Geneva, Switzerland and USA
Movement Serial Number:	62018
Grade:	74
Model:	1
Estimated Production Year:	1891
Run Quantity:	600
Grade/Model Run:	10 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:	Screw-Set
Movement Configuration:	Hunting
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:	No
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 Safety Pinion Adjusted
Case:	Various
Run ID:	40.74G10.16S36.161M35.H21.L35.15J10
Database Version:	v52.289
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	7.09
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:	6 (1.00%)
Research Note: #61904, 62180: Private Label Marked "Hammersmith & Field - S.F. Cala."

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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

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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