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: 1289592 Question Mark
Grade: 990 Question Mark
Model: 2 Question Mark
Estimated Production Year: 1918 Question Mark
Run Quantity: 600 Question Mark
Grade/Model Run: 4 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: 1736.990G43.16S1008.162M175.O1170.L1144.21J496 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
11 (1.83%) 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.


Anonymous · June 27, 2024

Serial Number 1289592 was reported as accurate.

strikeph Supporter 24 · May 9, 2024

Serial Number 1289592 was reported as accurate.

cjbrem Supporter 957 · April 20, 2023

Serial Number 1289314 was reported as accurate.

pwdmbj Supporter 557 · April 25, 2020

Serial Number 1289158 was reported as accurate.

dfchong 837 · December 5, 2019

Serial Number 1289133 was reported as accurate.

Anonymous · October 24, 2019

Serial Number 1289110 was reported as accurate.

Anonymous · October 3, 2019

Serial Number 1289317 was reported as accurate.

pwdmbj Supporter 557 · December 14, 2017

Serial Number 1289158 was reported as accurate.

ceocbeck 112 · September 9, 2017

Serial Number 1289571 was reported as accurate.

Anonymous · May 30, 2017

Serial Number 1289300 was reported as accurate.

MichaelB 150 · March 4, 2017

Serial Number 1289280 was reported as accurate.

redsox1 74 · December 18, 2016

Serial Number 1289115 was reported as accurate.

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

Anonymous · November 3, 2016

Serial Number 1289115 was reported as accurate.

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

Anonymous · September 23, 2015

Serial Number 1289649 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 15, 2014

Serial Number 1289221 was reported as accurate.

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

rocket00 236 · April 26, 2014

Serial Number 1289134 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 · September 19, 2013

Serial Number 1289134 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 · September 14, 2013

Serial Number 1289134 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2
Double Roller changed from Yes to No
Hamilton Grade 990 Pocket Watch