Pocket Watch Database

From the American Horology Archive:
Waltham Grade No. 820 Pocket Watch

American Waltham Watch Co.

Grade: No. 820

Mixed Run: 15-Jewel and 17- Jewel Movements

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 12155615
Grade: No. 820
Model: 1883
Estimated Production Year: 1903
Run Quantity: 1,900
Grade/Model Run: 110 of 224
Grade/Model Total Production: 413,500
Size: 18s
Jewels: 15j    Mixed Run
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Setting: Lever
Plate: Full Plate
Hairspring: Breguet
Adjusted: No
Railroad Grade: No
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Case: Various
Run ID: 18073.G110.18S10915.181883M2520.H5641.L4581.15J4225
Database Version: v52.245
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
370.62
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
337.27
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.368%
Registry Population: 11 (0.58%)
$ Estimated Value (12 Month Change): -12.96% Analyzing 1,239 Sales

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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 · December 26, 2023

Serial Number 12156873 was reported as accurate.

Anonymous · December 26, 2023

Serial Number 12156870 was reported as accurate.

Anonymous · February 15, 2022

Serial Number 12156796 was reported as accurate.

MoatsJustin1 top-contributor 4691 · July 22, 2021

Serial Number 12156889 was reported as accurate.

hobbsy36 7 · December 19, 2020

Serial Number 12156866 was reported as inaccurate.

Note: ON MY IT 15 JEWELS NOT 17 JEWELS
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Jewels changed from 17j to 15j

MoatsJustin1 top-contributor 4691 · June 10, 2020

Serial Number 12156368 was reported as inaccurate.

Note: 17j not 15j

MoatsJustin1 top-contributor 4691 · June 10, 2020

Serial Number 12156368 was reported as accurate.

Anonymous · September 2, 2018

Serial Number 12155624 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · September 11, 2017

Serial Number 12156400 was reported as inaccurate.

Note: Marked 15 jewels, not 17 as stated
Changes since this report was submitted:
Jewels changed from 17j to 15j

Anonymous · June 20, 2016

Serial Number 12156046 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 17j to 15j

Anonymous · October 21, 2015

Serial Number 12156982 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 17j to 15j

Anonymous · March 12, 2015

Serial Number 12156548 was reported as inaccurate.

Note: 15 jewels clearly marked on movement
Changes since this report was submitted:
Jewels changed from 17j to 15j

jrobinson777 97 · April 13, 2014

Serial Number 12155615 was reported as inaccurate.

Note: Jewels: 17 (clearly marked on movement)
Movement Finish: Nickel
Railroad Grade: No
Waltham Grade No. 820 Pocket Watch