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: 1899539
Grade: 920
Model: 1
Estimated Production Year: 1921
Run Quantity: 700
Grade/Model Run: 11 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: 2129.920G11.12S73.121M73.O1532.P619.23J50
Database Version: v52.235
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
43.95
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: 10 (1.43%)
$ Estimated Value (12 Month Change): -8.87% 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 30, 2020

Serial Number 1899737 was reported as accurate.

Anonymous · July 1, 2018

Serial Number 1899889 was reported as accurate.

Anonymous · March 24, 2018

Serial Number 1899516 was reported as accurate.

roadking 36 · December 3, 2017

Serial Number 1899861 was reported as accurate.

Anonymous · April 28, 2017

Serial Number 1899954 was reported as accurate.

mpnunn 1 · February 23, 2017

Serial Number 1899783 was reported as accurate.

71hccv 1 · March 21, 2016

Serial Number 1899962 was reported as accurate.

Anonymous · August 15, 2012

Serial Number 1899331 was reported as accurate.

Hamilton Grade 920 Pocket Watch