Pocket Watch Database

We noticed that you entered a relatively short serial number.
"6690" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
From the American Horology Archive:
Hamilton Grade 938 Pocket Watch

Hamilton Watch Co.

Grade: 938

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 6690
Grade: 938
Model: 1
Class: 1
Estimated Production Year: 1895
Run Quantity: 100
Grade/Model Run: 1 of 9
Grade/Model Total Production: 2,198
Size: 18s
Jewels: 17j
Jewel Material: Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Regulator: Goldthwait
Hairspring: Breguet
Pallet Jewel Material: Sapphire
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Railroad Grade Classification: Class A
Dial Feet Locations: 2.6, 18.0, 38.2
Data Research: 1953 Hamilton Serial List
Case: Various
Run ID: 25.938G1.18S25.181M13.O13.L25.17J14
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
6.58
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
2.90
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.021%
Registry Population: 3 (3.00%)

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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 · May 9, 2023

Serial Number 6630 was reported as accurate.

Mobilaero Top Contributor Supporter 291 · December 31, 2020

Serial Number 6602 was reported as accurate.

Mobilaero Top Contributor Supporter 291 · December 31, 2020

Serial Number 6601 was reported as accurate.

fordcasa Top Contributor Supporter 434 · July 23, 2020

Serial Number 6639 was reported as accurate.

Anonymous · October 1, 2019

Serial Number 6632 was reported as accurate.

Anonymous · June 14, 2018

Serial Number 6633 was reported as accurate.

Gimparoo Supporter 703 · January 22, 2018

Serial Number 6691 was reported as accurate.

Anonymous · August 6, 2014

Serial Number 6639 was reported as accurate.

Anonymous · June 28, 2014

Serial Number 6639 was reported as accurate.

Anonymous · December 31, 2013

Serial Number 6639 was reported as accurate.

Anonymous · August 31, 2013

Serial Number 6690 was reported as accurate.

Hamilton Grade 938 Pocket Watch