Pocket Watch Database

From the American Horology Archive:
Waltham Grade No. 20 Pocket Watch

American Waltham Watch Co.

Grade: No. 20

Mixed Run: 7-Jewel and 11-Jewel Movements

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 8260972
Grade: No. 20
Model: 1888
Estimated Production Year: 1897
Run Quantity: 8,000
Grade/Model Run: 121 of 138
Grade/Model Total Production: 305,873
Size: 16s
Jewels: 11j    Mixed Run
Movement Configuration: Openface
Movement Finish: Gilt
Movement Setting: Pendant
Plate: 3/4 Plate
Regulator: Patent
Hairspring: Breguet
Adjusted: No
Railroad Grade: No
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Case: Various
Run ID: 15887.G121.16S903.161888M578.O10348.P2325.11J5735
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
442.23
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
404.67
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.442%
Registry Population: 29 (0.36%)
Research Note: Waltham Serial Lists designate this run as being comprised of No. 20 Grade with 7-11 Jewels. 8261864: Confirmed to have 7 jewels [eBay #263777068649]. #8260922: Verified as 7-Jewels.

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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.


pinkdrill Supporter 98 · September 24, 2023

Serial Number 8262522 was reported as accurate.

Collector18 5 · August 30, 2021

Serial Number 8263023 was reported as accurate.

MoatsJustin1 top-contributor 4691 · April 29, 2021

Serial Number 8258729 was reported as accurate.

Anonymous · September 20, 2020

Serial Number 8260972 was reported as accurate.

Anonymous · September 18, 2020

Serial Number 8263015 was reported as inaccurate.

Note: this serial # is a 7 jewel

Anonymous · May 18, 2020

Serial Number 8264530 was reported as accurate.

Anonymous · May 18, 2020

Serial Number 8264530 was reported as accurate.

PHIL1199 Supporter 940 · November 29, 2019

Serial Number 8263574 was reported as accurate.

Anonymous · October 27, 2019

Serial Number 8257009 was reported as accurate.

Anonymous · February 17, 2019

Serial Number 8261362 was reported as accurate.

Anonymous · January 14, 2019

Serial Number 8260922 was reported as accurate.

64type1 6 · December 17, 2018

Serial Number 8259279 was reported as accurate.

Anonymous · November 17, 2018

Serial Number 8262016 was reported as inaccurate.

Note: movement is 7 jewel

Anonymous · November 13, 2018

Serial Number 8264176 was reported as accurate.

Bildeborg 48 · June 25, 2018

Serial Number 8261864 was reported as inaccurate.

Note: This watch is 7 jewelled.

davidm61 5 · January 29, 2018

Serial Number 8264095 was reported as accurate.

Anonymous · January 6, 2018

Serial Number 8261910 was reported as accurate.

Anonymous · January 5, 2018

Serial Number 8261910 was reported as accurate.

JLashbrook 109 · November 20, 2017

Serial Number 8264095 was reported as inaccurate.

Note: Two tone
Curator Response: "Two-Tone" typically indicates the movement being finished with gilt-over-nickel damaskeened patterns. The Waltham Grade No. 20 features nickel winding wheels with a gilded plate finish.

Anonymous · September 6, 2017

Serial Number 8260050 was reported as inaccurate.

Note: My sample is 7 jewel

Anonymous · July 11, 2017

Serial Number 8262840 was reported as accurate.

Anonymous · February 23, 2017

Serial Number 8257320 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · November 24, 2016

Serial Number 8262016 was reported as accurate.

Anonymous · November 18, 2016

Serial Number 8258954 was reported as accurate.

gary1944 1 · July 29, 2016

Serial Number 8257848 was reported as accurate.

Anonymous · May 6, 2016

Serial Number 8258757 was reported as accurate.

Anonymous · February 22, 2016

Serial Number 8257680 was reported as accurate.

Anonymous · December 5, 2015

Serial Number 8257774 was reported as accurate.

Matticus 14 · September 29, 2015

Serial Number 8264437 was reported as accurate.

Matticus 14 · September 19, 2015

Serial Number 8264437 was reported as accurate.

Anonymous · August 15, 2015

Serial Number 8263972 was reported as accurate.

Anonymous · July 5, 2015

Serial Number 8263972 was reported as accurate.

Anonymous · June 10, 2015

Serial Number 8259594 was reported as accurate.

Anonymous · December 11, 2014

Serial Number 8264437 was reported as accurate.

Anonymous · June 22, 2014

Serial Number 8263849 was reported as accurate.

Anonymous · December 9, 2012

Serial Number 8263171 was reported as inaccurate.

No further details were submitted with the report.
Waltham Grade No. 20 Pocket Watch