Pocket Watch Database

From the American Horology Archive:
Hamilton Grade 920 Pocket Watch

Hamilton Watch Co.

Grade: 920

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 1864944
Grade: 920
Model: 1
Estimated Production Year: 1920
Run Quantity: 700
Grade/Model Run: 7 of 15
Grade/Model Total Production: 14,600
Size: 12s
Jewels: 23j
Jewel Material: Ruby or Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Balance Type: Compensation
Train Material: Gold
Center Wheel Material: Gold
Regulator: Reed
Hairspring: Breguet
Pallet Jewel Material: Sapphire
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: No
Dial Feet Locations: 10.5, 38.5, 56.0
Data Research: 1953 Hamilton Serial List
Case: Various
Run ID: 2105.920G7.12S49.121M49.O1508.P595.23J46
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
43.71
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
19.28
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.137%
Registry Population: 8 (1.14%)
$ Estimated Value (12 Month Change): -1.42% Analyzing 71 Sales
Research Note:

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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 · July 24, 2023

Serial Number 1864631 was reported as accurate.

Anonymous · August 15, 2021

Serial Number 1864866 was reported as accurate.

Anonymous · February 6, 2021

Serial Number 1864863 was reported as accurate.

Anonymous · August 9, 2019

Serial Number 1864305 was reported as accurate.

Anonymous · August 8, 2019

Serial Number 1864865 was reported as accurate.

Anonymous · May 26, 2018

Serial Number 1864415 was reported as accurate.

Anonymous · June 28, 2016

Serial Number 1864944 was reported as accurate.

Anonymous · April 9, 2015

Serial Number 1864873 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · January 27, 2014

Serial Number 1864432 was reported as accurate.

Hamilton Grade 920 Pocket Watch