Hamilton Pocket Watch: Serial Number 644937 (Grade 940)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/hamilton/644937/movement

Access Date: December 20, 2024

From the American Horology Archive:

Hamilton Watch Co.

Grade: 940

Manufacturer:	Hamilton
Manufacturer Location:	Lancaster, Pennsylvania
Movement Serial Number:	644937
Grade:	940
Model:	1
Estimated Production Year:	1909
Run Quantity:	600
Grade/Model Run:	90 of 121
Grade/Model Total Production:	210,596
Size:	18s
Jewels:	21j
Jewel Material:	Ruby
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Nickel
Finish Pattern:	Damaskeened
Movement Inlay Color:	Gilt
Movement Setting:	Lever
Plate:	Full Plate
Double Roller:	Yes
Barrel:	Motor
Regulator:	Goldthwait
Hairspring:	Breguet
Standard Dial Type:	Double-Sunk
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Railroad Grade:	Yes
Railroad Grade Classification:	Class A
Dial Feet Locations:	2.6, 18.0, 38.2
U.S. Patents:	832672, 427072
Case:	Various
Run ID:	1077.940G90.18S626.181M393.O643.L713.21J281
Data Research:	1953 Hamilton Serial List
Database Version:	v52.516
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	634.05
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	278.20
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	1.977%
Registry Population: Scoped for This Run Only	9 (1.50%)
$ Estimated Value (12 Month Change):	-3.09% Analyzing 2,401 Sales
Research Note: Gilt Lettering

Value Guide

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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.