Pocket Watch Database


From the American Horology Archive:
Hamilton Grade 990 Pocket Watch

Hamilton Watch Co.

Grade: 990

Manufacturer: Hamilton Question Mark
Manufacturer Location: Lancaster, Pennsylvania Question Mark
Movement Serial Number: 1321108 Question Mark
Grade: 990 Question Mark
Model: 2 Question Mark
Estimated Production Year: 1918 Question Mark
Run Quantity: 300 Question Mark
Grade/Model Run: 6 of 6 Question Mark
Grade/Model Total Production: 3,700 Question Mark
Size: 16s Question Mark
Jewels: 21j Question Mark
Jewel Material: Ruby & Sapphire Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Barrel: Going Question Mark
Regulator: Reed Question Mark
Hairspring: Breguet Question Mark
Pallet Jewel Material: Sapphire Question Mark
Standard Dial Type: Double-Sunk 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: Yes Question Mark
Dial Feet Locations: 22.3, 38.0, 57.1
Hamilton 16s Dial Feet Research
Question Mark
Case: Various Question Mark
Run ID: 1763.990G45.16S1035.162M202.O1195.L1160.21J508 Question Mark
Data Research: 1953 Hamilton Serial List
Question Mark
Database Version: v52.517 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
11.14 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
4.89 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.035% Question Mark
Registry Population:
Scoped for This Run Only
5 (1.67%) Question Mark

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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.


MNCharlie 1 · May 5, 2021

Serial Number 1321124 was reported as accurate.

jeromeschley 60 · January 27, 2021

Serial Number 1321279 was reported as accurate.

Anonymous · January 21, 2019

Serial Number 1321119 was reported as accurate.

Anonymous · June 22, 2018

Serial Number 1321274 was reported as accurate.

Anonymous · March 10, 2018

Serial Number 1321176 was reported as accurate.

fordcasa Top Contributor Supporter 444 · April 29, 2017

Serial Number 1321247 was reported as accurate.

Anonymous · February 9, 2017

Serial Number 1321124 was reported as accurate.

fordcasa Top Contributor Supporter 444 · November 5, 2016

Serial Number 1321053 was reported as accurate.

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

Anonymous · September 14, 2015

Serial Number 1321020 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2
Double Roller changed from Yes to No

mazi07 1 · April 3, 2015

Serial Number 1321285 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2
Double Roller changed from Yes to No

Anonymous · January 8, 2015

Serial Number 1321183 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2
Double Roller changed from Yes to No

Anonymous · July 20, 2014

Serial Number 1321093 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2
Double Roller changed from Yes to No

Anonymous · December 25, 2013

Serial Number 1321074 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2
Double Roller changed from Yes to No

Anonymous · February 14, 2013

Serial Number 1321267 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2
Hamilton Grade 990 Pocket Watch