Pocket Watch Database


From the American Horology Archive:
Hamilton Grade 900 Pocket Watch
Hamilton Grade 900 Pocket Watch

Hamilton Watch Co.

Grade: 900

Only Sold Cased by Hamilton

Manufacturer: Hamilton Question Mark
Manufacturer Location: Lancaster, Pennsylvania Question Mark
Movement Serial Number: 1812759 Question Mark
Grade: 900 Question Mark
Model: 1 Question Mark
Estimated Production Year: 1918 Question Mark
Run Quantity: 2,000 Question Mark
Grade/Model Run: 4 of 15 Question Mark
Grade/Model Total Production: 24,700 Question Mark
Size: 12s Question Mark
Jewels: 19j Question Mark
Jewel Material: Ruby & Sapphire Question Mark
Jewel Setting: Raised Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Barrel: Patent Motor Question Mark
Train Material: Gold Question Mark
Center Wheel Material: Gold Question Mark
Regulator: Micrometer 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
Movement Markings: Hamilton
Lancaster, Pa.
19 Jewels
Adjusted 5 Positions
Safety Pinion
Case: Various Question Mark
Run ID: 2072.900G4.12S16.121M16.O1475.P562.19J61 Question Mark
Data Research: 1953 Hamilton Serial List
Question Mark
Database Version: v52.467 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
74.36 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
32.63 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.232% Question Mark
Registry Population:
Scoped for This Run Only
13 (0.65%) Question Mark
$ Estimated Value (12 Month Change): -10.67% Analyzing 121 Sales Question Mark
Research Note: Pillar Plate Diameter: 1.630"

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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 7, 2024

Serial Number 1811524 was reported as accurate.

Anonymous · May 6, 2022

Serial Number 1812373 was reported as accurate.

Anonymous · December 28, 2020

Serial Number 1812658 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · October 11, 2019

Serial Number 1811412 was reported as accurate.

rjbeck 150 · September 21, 2019

Serial Number 1811412 was reported as accurate.

onradcl 1 · May 1, 2019

Serial Number 1811973 was reported as accurate.

Anonymous · August 24, 2018

Serial Number 1812611 was reported as accurate.

Anonymous · July 30, 2018

Serial Number 1812151 was reported as accurate.

Anonymous · November 14, 2016

Serial Number 1812559 was reported as accurate.

Anonymous · January 5, 2016

Serial Number 1812979 was reported as accurate.

catman032076 101 · December 24, 2015

Serial Number 1812664 was reported as accurate.

Anonymous · October 9, 2015

Serial Number 1811139 was reported as accurate.

Anonymous · September 6, 2015

Serial Number 1811685 was reported as accurate.

Anonymous · May 24, 2015

Serial Number 1811629 was reported as accurate.

Anonymous · September 30, 2014

Serial Number 1812863 was reported as accurate.

Anonymous · August 14, 2014

Serial Number 1812863 was reported as accurate.

Anonymous · August 8, 2014

Serial Number 1811629 was reported as accurate.

Anonymous · March 3, 2014

Serial Number 1812772 was reported as accurate.

Anonymous · July 2, 2013

Serial Number 1812231 was reported as inaccurate.

Note: 17 j not 19. As far as I can tell that is all.
Changes since this report was submitted:
Plate changed from Unknown to Bridge

Anonymous · July 2, 2013

Serial Number 1812863 was reported as accurate.

Anonymous · June 7, 2013

Serial Number 1812405 was reported as accurate.

Anonymous · June 6, 2013

Serial Number 1812863 was reported as accurate.

Bluejay 179 · June 5, 2013

Serial Number 1812405 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Plate changed from Unknown to Bridge

Anonymous · May 25, 2013

Serial Number 1812503 was reported as inaccurate.

Note: Size Is 14
Changes since this report was submitted:
Plate changed from Unknown to Bridge

Anonymous · March 22, 2013

Serial Number 1812863 was reported as accurate.

Anonymous · January 9, 2013

Serial Number 1812763 was reported as accurate.

Anonymous · October 21, 2012

Serial Number 1812929 was reported as inaccurate.

Note: Grade 900 had a Motor Barrel on all movements that
I have seen.
Changes since this report was submitted:
Plate changed from Unknown to Bridge
Hamilton Grade 900 Pocket Watch
Hamilton Grade 900 Pocket Watch