Pocket Watch Database
https://pocketwatchdatabase.com/search/result/hamilton/912731/movement
Access Date: December 20, 2024
From the American Horology Archive:
Hamilton Watch Co.
Grade: 940
| Manufacturer: | Hamilton |  |
| Manufacturer Location: | Lancaster, Pennsylvania | |
| Movement Serial Number: | 912731 | |
| Grade: | 940 | |
| Model: | 1 | |
| Estimated Production Year: | 1911 | |
| Run Quantity: | 8,000 | |
| Grade/Model Run: | 101 of 121 | |
| Grade/Model Total Production: | 210,596 | |
| Size: | 18s | |
| Jewels: | 21j | |
| Jewel Material: | Ruby | |
| Jewel Setting: | Gold Settings (Screw-Set) | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Finish Pattern: | Damaskeened | |
| Movement Signing Style: | Serif (Decorative) | |
| Movement Inlay Color: | Gilt | |
| Movement Setting: | Lever | |
| Plate: | Full Plate | |
| Double Roller: | Yes | |
| Barrel: | Motor | |
| Regulator: | Goldthwait | |
| Hairspring: | Breguet | |
| 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 | |
| U.S. Patents: | 832672, 427072 | |
| Movement Markings: | Hamilton Watch Co. Lancaster, Pa. Motor Barrel 940 Adjusted 5 Positions 21 Jewels Double Roller Safety Pinion |
|
| Case: | Various | |
| Run ID: | 1423.940G101.18S671.181M425.O903.L940.21J391 | |
| Data Research: |
1953 Hamilton Serial List |
|
| Database Version: | v52.516 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 634.05 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 278.20 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 1.977% | |
| Registry Population: Scoped for This Run Only | 74 (0.93%) | |
| $ Estimated Value (12 Month Change): | -3.09% Analyzing 2,401 Sales | |
|
Research Note: #907541: Verified as a 23-Jewel movement upgraded post-factory. The original "21" marking has been drilled out and replaced with a plug marked "23" (Jewels)., Gilt Lettering
|
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Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 74 watches in the population registry for this run with 14 images.
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Help Us Help Others By Improving the Database:
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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 · November 8, 2024
Serial Number 910327 was reported as accurate.
Dave895 Supporter 102 · October 16, 2024
Serial Number 907023 was reported as accurate.
pmtime Supporter 612 · September 16, 2024
Serial Number 913333 was reported as accurate.
WIZARDofWARLOCK Supporter 24 · April 13, 2024
Serial Number 908878 was reported as accurate.
Anonymous · January 6, 2024
Serial Number 908179 was reported as accurate.
cjbrem Supporter 955 · March 16, 2023
Serial Number 910589 was reported as accurate.
Anonymous · March 12, 2023
Serial Number 910260 was reported as accurate.
viclip 29 · October 15, 2022
Serial Number 908344 was reported as accurate.
Anonymous · April 15, 2022
Serial Number 907875 was reported as accurate.
cranemaker Supporter 83 · April 10, 2022
Serial Number 906664 was reported as accurate.
Anonymous · April 7, 2022
Serial Number 906553 was reported as accurate.
Anonymous · February 15, 2022
Serial Number 908154 was reported as accurate.
NathanS 3 · December 31, 2021
Serial Number 907541 was reported as inaccurate.
engraved 23 over the original 21. Motor barrel
has been jeweled with what appears to be Gold
setting, press fit. One case screw (upper right)
appears non original.
texnet 684 · December 31, 2021
Serial Number 907541 was reported as inaccurate.
Anonymous · September 20, 2021
Serial Number 907202 was reported as accurate.
Anonymous · September 18, 2021
Serial Number 907202 was reported as accurate.
IouriK Supporter 3 · September 7, 2021
Serial Number 912311 was reported as accurate.
Anonymous · May 31, 2021
Serial Number 909707 was reported as accurate.
Anonymous · April 21, 2021
Serial Number 907202 was reported as accurate.
Anonymous · April 21, 2021
Serial Number 907202 was reported as accurate.
Anonymous · April 20, 2021
Serial Number 906553 was reported as accurate.
Fifty50 Supporter 350 · April 3, 2021
Serial Number 913943 was reported as accurate.
Anonymous · February 27, 2021
Serial Number 910378 was reported as accurate.
Anonymous · December 27, 2020
Serial Number 907404 was reported as inaccurate.
trimmed movement grade 940.
MoatsJustin1 top-contributor 5272 · November 28, 2020
Serial Number 910030 was reported as accurate.
Anonymous · November 21, 2020
Serial Number 907786 was reported as accurate.
Anonymous · November 9, 2020
Serial Number 907202 was reported as accurate.
Anonymous · October 11, 2020
Serial Number 911399 was reported as accurate.
Anonymous · July 9, 2020
Serial Number 907202 was reported as accurate.
Anonymous · July 2, 2020
Serial Number 907202 was reported as accurate.
Anonymous · June 29, 2020
Serial Number 908909 was reported as accurate.
Joef21 162 · June 16, 2020
Serial Number 912731 was reported as accurate.
Joef21 162 · June 16, 2020
Serial Number 912731 was reported as accurate.
Anonymous · June 10, 2020
Serial Number 908415 was reported as accurate.
Anonymous · May 14, 2020
Serial Number 907893 was reported as inaccurate.
Anonymous · May 10, 2020
Serial Number 907202 was reported as accurate.
Anonymous · February 20, 2020
Serial Number 907202 was reported as accurate.
Anonymous · January 31, 2020
Serial Number 907793 was reported as accurate.
Anonymous · January 29, 2020
Serial Number 910786 was reported as accurate.
Anonymous · November 29, 2019
Serial Number 907964 was reported as accurate.
Anonymous · October 25, 2019
Serial Number 910205 was reported as accurate.
Anonymous · June 28, 2019
Serial Number 911415 was reported as inaccurate.
Anonymous · June 11, 2019
Serial Number 912581 was reported as accurate.
Anonymous · June 6, 2019
Serial Number 912229 was reported as accurate.
Anonymous · May 24, 2019
Serial Number 911358 was reported as accurate.
Anonymous · May 9, 2019
Serial Number 910494 was reported as accurate.
avpalermo Supporter 644 · February 15, 2019
Serial Number 907778 was reported as accurate.
Anonymous · January 24, 2019
Serial Number 911459 was reported as accurate.
Anonymous · December 21, 2018
Serial Number 909782 was reported as accurate.
diamondisk 4 · September 16, 2018
Serial Number 912991 was reported as accurate.
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