Pocket Watch Database
https://pocketwatchdatabase.com/search/result/waltham/5001
Access Date: March 26, 2025
"5001" 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:

American Waltham Watch Co.
Grade: Tracy Baker & Co.
Manufacturer: | Waltham | ![]() |
Manufacturer Location: | Waltham, Massachusetts | ![]() |
Movement Serial Number: | 5001 | ![]() |
Grade: | Tracy Baker & Co. | ![]() |
Model: | 1857 | ![]() |
Estimated Production Date: | July 1857 | ![]() |
Run Quantity: | 20 | ![]() |
Grade/Model Run: | 1 of 1 | ![]() |
Grade/Model Total Production: | 20 | ![]() |
Size: | 18s | ![]() |
Jewels: | 16j | ![]() |
Movement Configuration: | Adaptable | ![]() |
Movement Finish: | Gilt | ![]() |
Movement Signing Style: | Mixed | ![]() |
Movement Inlay Color: | None | ![]() |
Movement Setting: | Key | ![]() |
Plate: | Full Plate | ![]() |
Regulator: | Undersprung | ![]() |
Adjusted: | Yes | ![]() |
Adjusted to Position: | Yes | ![]() |
Case: | Various | ![]() |
Run ID: | 12.G1.18S12.181857M11.O12.K11.16J1 | ![]() |
Data Research: |
c.1900 Waltham Factory Ledger Book 1 [NAWCC] c.1900 Waltham Factory Ledgers [Ehrhardt Transcription] 1954 Waltham "Gray Book" List NAWCC Waltham Serial Digest |
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Database Version: | v52.624 | ![]() |
Advanced Metrics | ||
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 0.06 | ![]() |
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.05 | ![]() |
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.000% | ![]() |
Research Note: Original Waltham Serial Ledgers designate the 5,001-5,100 at grade Appleton, Tracy & Co. However, sales records indicate the first ~20 movements from this run were marked "Tracy Baker & Co."
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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.
