Pocket Watch Database

From the American Horology Archive:
Hamilton Grade 920 Pocket Watch

Hamilton Watch Co.

Grade: 920

Manufacturer: Hamilton Question Mark
Manufacturer Location: Lancaster, Pennsylvania Question Mark
Movement Serial Number: 1779240 Question Mark
Grade: 920 Question Mark
Model: 1 Question Mark
Estimated Production Year: 1916 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 3 of 15 Question Mark
Grade/Model Total Production: 14,600 Question Mark
Size: 12s Question Mark
Jewels: 23j Question Mark
Jewel Material: Ruby or Ruby & Sapphire Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Balance Type: Compensation Question Mark
Train Material: Gold Question Mark
Center Wheel Material: Gold Question Mark
Regulator: Reed Question Mark
Hairspring: Breguet Question Mark
Pallet Jewel Material: Sapphire Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: No Question Mark
Dial Feet Locations: 10.5, 38.5, 56.0 Question Mark
Case: Various Question Mark
Run ID: 2065.920G3.12S9.121M9.O1468.P555.23J42 Question Mark
Data Research: 1953 Hamilton Serial List
Question Mark
Database Version: v52.478 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
43.95 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
19.28 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.137% Question Mark
Registry Population:
Scoped for This Run Only
12 (1.20%) Question Mark
$ Estimated Value (12 Month Change): 7.88% Analyzing 74 Sales Question Mark
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 · March 15, 2024

Serial Number 1779543 was reported as accurate.

Anonymous · January 22, 2022

Serial Number 1779333 was reported as accurate.

Anonymous · August 22, 2021

Serial Number 1779778 was reported as accurate.

Anonymous · February 28, 2020

Serial Number 1779421 was reported as accurate.

Anonymous · August 6, 2017

Serial Number 1779618 was reported as accurate.

zender05472 3 · November 13, 2015

Serial Number 1779998 was reported as accurate.

Anonymous · September 16, 2015

Serial Number 1779998 was reported as accurate.

Anonymous · December 6, 2014

Serial Number 1779729 was reported as accurate.

philsan1a 221 · November 26, 2014

Serial Number 1779729 was reported as accurate.

Anonymous · June 17, 2014

Serial Number 1779251 was reported as accurate.

Anonymous · September 16, 2013

Serial Number 1779240 was reported as accurate.

Anonymous · July 21, 2013

Serial Number 1779739 was reported as accurate.

Anonymous · June 1, 2013

Serial Number 1779961 was reported as accurate.

Anonymous · October 24, 2012

Serial Number 1779504 was reported as inaccurate.

Note: Hi, This Grade also had a Motor Barrel
Mainspring.. You have a great web site.....
Changes since this report was submitted:
Plate changed from Unknown to Bridge

Anonymous · May 9, 2012

Serial Number 1779244 was reported as accurate.

Anonymous · May 5, 2012

Serial Number 1779244 was reported as accurate.

Hamilton Grade 920 Pocket Watch