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: 1880402
Grade: 900
Model: 1
Estimated Production Year: 1921
Run Quantity: 1,200
Grade/Model Run: 8 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: 2116.900G8.12S60.121M60.O1519.P606.19J65
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: 15 (1.25%)
$ 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 · July 15, 2020

Serial Number 1880683 was reported as accurate.

2mnyboxers Supporter 398 · February 25, 2020

Serial Number 1880643 was reported as accurate.

Anonymous · September 6, 2018

Serial Number 1881248 was reported as accurate.

Anonymous · July 27, 2018

Serial Number 1880303 was reported as accurate.

Anonymous · February 21, 2017

Serial Number 1880941 was reported as accurate.

Anonymous · October 28, 2016

Serial Number 1881456 was reported as accurate.

Anonymous · September 23, 2015

Serial Number 1880858 was reported as inaccurate.

Note: 17 jewels, 956

Anonymous · September 14, 2014

Serial Number 1881015 was reported as accurate.

stox723 23 · April 25, 2014

Serial Number 1881440 was reported as accurate.

Anonymous · February 18, 2014

Serial Number 1880332 was reported as accurate.

Anonymous · July 23, 2012

Serial Number 1881156 was reported as accurate.

Hamilton Grade 900 Pocket Watch
Hamilton Grade 900 Pocket Watch