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
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 1862540
Grade: 900
Model: 1
Estimated Production Year: 1920
Run Quantity: 2,000
Grade/Model Run: 6 of 15
Grade/Model Total Production: 24,700
Size: 12s
Jewels: 19j
Jewel Material: Ruby & Sapphire
Jewel Setting: Raised Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Inlay Color: Black
Movement Setting: Pendant
Plate: Bridge Plate
Barrel: Patent Motor
Train Material: Gold
Center Wheel Material: Gold
Regulator: Micrometer
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
Movement Markings: Hamilton
Lancaster, Pa.
19 Jewels
Adjusted 5 Positions
Safety Pinion
Data Research: 1953 Hamilton Serial List
Case: Various
Run ID: 2102.900G6.12S46.121M46.O1505.P592.19J63
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
73.95
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
32.63
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.232%
Registry Population: 18 (0.90%)
$ Estimated Value (12 Month Change): -19.42% Analyzing 121 Sales
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 · March 21, 2024

Serial Number 1861258 was reported as accurate.

Anonymous · October 26, 2023

Serial Number 1862020 was reported as inaccurate.

Note: My movement is a 920 grade, which is similar,
although not the same as the 900. 920 is a 23
jewels
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · November 14, 2020

Serial Number 1862211 was reported as accurate.

Anonymous · August 24, 2020

Serial Number 1861924 was reported as accurate.

Anonymous · August 12, 2020

Serial Number 1861903 was reported as accurate.

Anonymous · August 8, 2020

Serial Number 1861903 was reported as accurate.

ralph1 105 · May 26, 2020

Serial Number 1862029 was reported as accurate.

Anonymous · May 30, 2019

Serial Number 1862199 was reported as accurate.

Anonymous · April 14, 2019

Serial Number 1862434 was reported as accurate.

Anonymous · March 30, 2019

Serial Number 1861841 was reported as accurate.

Anonymous · March 24, 2019

Serial Number 1861949 was reported as accurate.

Anonymous · November 7, 2017

Serial Number 1862211 was reported as accurate.

rjbeck 150 · December 23, 2016

Serial Number 1861556 was reported as accurate.

Anonymous · November 7, 2016

Serial Number 1862887 was reported as accurate.

Silvercloud 183 · April 14, 2016

Serial Number 1862773 was reported as accurate.

Anonymous · February 10, 2016

Serial Number 1861428 was reported as accurate.

Anonymous · September 17, 2014

Serial Number 1862751 was reported as accurate.

Anonymous · May 9, 2014

Serial Number 1862718 was reported as accurate.

Anonymous · March 25, 2014

Serial Number 1862918 was reported as accurate.

Anonymous · March 12, 2014

Serial Number 1862068 was reported as accurate.

Anonymous · December 15, 2013

Serial Number 1861632 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · July 1, 2012

Serial Number 1862113 was reported as accurate.

Hamilton Grade 900 Pocket Watch
Hamilton Grade 900 Pocket Watch