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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/hamilton/9920/movement
https://pocketwatchdatabase.com/search/result/hamilton/9920/movement
Access Date: November 19, 2024
We noticed that you entered a relatively short serial number.
"9920" 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.
"9920" 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 Watch Co.
Grade: 939
| Manufacturer: | Hamilton |  |
| Manufacturer Location: | Lancaster, Pennsylvania | |
| Movement Serial Number: | 9920 | |
| Grade: | 939 | |
| Model: | 2 | |
| Class: | 1 | |
| Estimated Production Year: | 1896 | |
| Run Quantity: | 100 | |
| Grade/Model Run: | 4 of 7 | |
| Grade/Model Total Production: | 1,310 | |
| Size: | 18s | |
| Jewels: | 17j | |
| Jewel Material: | Ruby & Sapphire | |
| Jewel Setting: | Gold Settings (Screw-Set) | |
| Movement Configuration: | Hunting | |
| 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 C | |
| Dial Feet Locations: | 2.6, 18.0, 38.2 | |
| Case: | Various | |
| Run ID: | 40.939G4.18S40.182M22.H22.L40.17J26 | |
| Data Research: |
1953 Hamilton Serial List |
|
| Database Version: | v52.445 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 3.94 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 1.73 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.012% | |
| Registry Population: Scoped for This Run Only | 4 (4.00%) | |
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 4 watches in the population registry for this run.
|
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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 · January 19, 2024
Serial Number 9918 was reported as accurate.
Anonymous · June 24, 2023
Serial Number 9928 was reported as inaccurate.
No further details were submitted with the report.
keefer 1 · November 8, 2017
Serial Number 9928 was reported as inaccurate.
Note: Adjusted # of positions is 6
Curator Response: Thanks for the report. Do you have a primary source to support an adjustment to 6 positions? The grades 938/939 are typically considered to be adjusted to 5 positions, espeically considering the era.
Anonymous · November 27, 2015
Serial Number 9928 was reported as accurate.
Anonymous · August 24, 2015
Serial Number 9910 was reported as accurate.
Anonymous · July 22, 2014
Serial Number 9945 was reported as accurate.
Watchwomen 18 · June 15, 2013
Serial Number 9928 was reported as inaccurate.
No further details were submitted with the report.
Changes since this report was submitted:
Plate changed from Unknown to Full
Anonymous · January 17, 2013
Serial Number 9928 was reported as inaccurate.
No further details were submitted with the report.
Changes since this report was submitted:
Plate changed from Unknown to Full
