Pocket Watch Database

From the American Horology Archive:

Hamilton Watch Co.

Grade: 991

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 375290
Grade: 991
Model: 1
Estimated Production Year: 1907
Run Quantity: 400
Grade/Model Run: 4 of 9
Grade/Model Total Production: 2,520
Size: 16s
Jewels: 21j
Jewel Material: Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Setting: Lever
Plate: 3/4 Plate
Barrel: Going
Regulator: Reed
Hairspring: Breguet
Pallet Jewel Material: Sapphire
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
Dial Feet Locations: 7.6, 21.8, 38.0, 50.5
Hamilton 16s Dial Feet Research
Data Research: 1953 Hamilton Serial List
Case: Various
Run ID: 845.991G4.16S396.161M362.H391.L488.21J201
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
7.54
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
3.33
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.024%
Registry Population: 6 (1.50%)

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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.


Anonymous · May 13, 2021

Serial Number 375427 was reported as accurate.

Anonymous · November 29, 2020

Serial Number 375397 was reported as accurate.

Anonymous · March 26, 2014

Serial Number 375444 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 2 to 1

Anonymous · June 17, 2013

Serial Number 375333 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 2 to 1

Anonymous · May 10, 2013

Serial Number 375290 was reported as inaccurate.

Note: 3/4 plate
Changes since this report was submitted:
Factory Model changed from 2 to 1
Plate changed from Unknown to 3/4

Anonymous · May 8, 2013

Serial Number 375290 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 2 to 1

Anonymous · May 8, 2013

Serial Number 375290 was reported as inaccurate.

Note: 3/4 plate
Changes since this report was submitted:
Factory Model changed from 2 to 1
Plate changed from Unknown to 3/4

Anonymous · April 2, 2013

Serial Number 375290 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 2 to 1

Anonymous · March 4, 2013

Serial Number 375333 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 2 to 1

Anonymous · February 28, 2013

Serial Number 375333 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 2 to 1