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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/waltham/2721889
https://pocketwatchdatabase.com/search/result/waltham/2721889
Access Date: April 11, 2025
From the American Horology Archive:
American Waltham Watch Co.
Grade: No. 25
Mixed Run: P.S. Bartlett Examples Reported
| Manufacturer: | Waltham |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 2721889 | |
| Grade: | No. 25 | |
| Variation: | W.W.Co. Quality | |
| Model: | 1877 | |
| Estimated Production Date: | March 1886 - October 1886 | |
| Run Quantity: | 400 | |
| Grade/Model Run: | 2 of 2 | |
| Grade/Model Total Production: | 600 | |
| Size: | 18s | |
| Jewels: | 15j | |
| Jewel Setting: | Screw-Set | |
| Movement Configuration: | Hunting | |
| Movement Finish: | Gilt | |
| Movement Signing Style: | Mixed | |
| Movement Inlay Color: | None | |
| Movement Setting: | Lever | |
| Winding Pinion: | Female | |
| Plate: | Full Plate | |
| Train: | Quick | |
| Regulator: | Patent | |
| Hairspring: | Breguet | |
| Adjusted: | Yes | |
| Adjusted to Position: | Yes | |
| Adjusted # of Positions: | 3 | |
| Adjusted to Temperature: | Yes | |
| Adjusted to Isochronism: | Yes | |
| Movement Markings: | P.S. Bartlett Waltham, Mass. Safety Pinion |
|
| Case: | Various | |
| Run ID: | 11687.G2.18S8057.181877M1818.H2465.L2718.15J2534 | |
| Data Research: |
c.1900 Waltham Factory Ledger Book 2 [NAWCC] 1954 Waltham "Gray Book" List NAWCC Waltham Serial Digest |
|
| Database Version: | v52.636 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 1.82 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 1.66 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.002% | |
| Registry Population: Scoped for This Run Only | 3 (0.75%) | |
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Research Note: Waltham Serial Ledgers designate run as "W.W.Co. Grande No. 25." However, #2721650 and #2721889: Reported as Grade P.S. Bartlett. , In 1894, Waltham added 2 center jewels to the remaining inventory, modifying the movements from 15j to 17j. All 17j movements are marked as such.
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Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
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There are 3 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.
Harley505 Supporter 78 · March 11, 2015
Serial Number 2721650 was reported as inaccurate.
Note: Stem wound, lever set, open face.
P.S. Bartlett.
P.S. Bartlett.
Changes since this report was submitted:
Movement Setting changed from Key to Lever
Adjusted changed from No to Yes
Anonymous · April 20, 2013
Serial Number 2721889 was reported as inaccurate.
Note: P.S. Bartlett grade
Lever set movement
Lever set movement
Changes since this report was submitted:
Movement Setting changed from Key to Lever
Adjusted changed from No to Yes