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: 12100129
Grade: No. 820
Model: 1883
Estimated Production Year: 1902
Run Quantity: 1,700
Grade/Model Run: 108 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: 18045.G108.18S10907.181883M2512.H5628.L4579.15J4213
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
368.57
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: 12 (0.71%)
$ Estimated Value (12 Month Change): -12.26% Analyzing 1,233 Sales
Research Note: Mixed Run: 15-Jewel and 17-Jewel Movements

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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.


PHIL1199 Supporter 940 · September 14, 2023

Serial Number 12100671 was reported as inaccurate.

Note: 12100671 HAS 15 JEWELS!.
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.
Changes since this report was submitted:
Jewels changed from 17j to 15j

Anonymous · January 16, 2021

Serial Number 12100000 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Jewels changed from 17j to 15j

Anonymous · January 11, 2021

Serial Number 12100540 was reported as accurate.

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

Anonymous · February 3, 2020

Serial Number 12100587 was reported as accurate.

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

Anonymous · January 29, 2020

Serial Number 12100587 was reported as accurate.

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

Anonymous · July 31, 2019

Serial Number 12099989 was reported as accurate.

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

Anonymous · February 19, 2019

Serial Number 12100101 was reported as accurate.

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

Anonymous · January 9, 2017

Serial Number 12100480 was reported as accurate.

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

cmdraven 3970 · July 9, 2016

Serial Number 12100386 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 17j to 15j
Movement Finish changed from Gilt or Nickel to Nickel

tkarter 184 · January 12, 2015

Serial Number 12100167 was reported as inaccurate.

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

Anonymous · November 15, 2014

Serial Number 12101250 was reported as inaccurate.

Note: 12101250 is inscribed 17 jewels

Anonymous · October 24, 2014

Serial Number 12099823 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · August 14, 2014

Serial Number 12099927 was reported as inaccurate.

No further details were submitted with the report.

wmrnwatch 1 · February 20, 2014

Serial Number 12100409 was reported as inaccurate.

Note: Jewels this model I have has 17 imprinted under
the serial number
Waltham Grade No. 820 Pocket Watch