Pocket Watch Database


From the American Horology Archive:
Waltham Grade No. 1420 Pocket Watch

American Waltham Watch Co.

Grade: No. 1420

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 15266258 Question Mark
Grade: No. 1420 Question Mark
Model: Colonial Series Question Mark
Estimated Production Year: 1907 Question Mark
Run Quantity: 4,000 Question Mark
Grade/Model Run: 9 of 31 Question Mark
Grade/Model Total Production: 51,000 Question Mark
Size: 14s Question Mark
Jewels: 15j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Plate: 3/4 Split Plate Question Mark
Regulator: Patent Question Mark
Hairspring: Breguet Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 19963.G9.14S2259.M26.O12546.P5513.15J4623 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.457 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
149.03 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
135.62 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.148% Question Mark
Registry Population:
Scoped for This Run Only
16 (0.40%) Question Mark
Research Note: Waltham Serial Ledgers designate this run as "Col. Ser." (Colonial Series). Pillar plate measures as 14s while movement is based on the 12s Model 1894.

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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.


jaspurlock2012 Supporter 125 · September 3, 2023

Serial Number 15266685 was reported as accurate.

tokiya 10 · June 11, 2022

Serial Number 15266258 was reported as accurate.

Anonymous · August 26, 2021

Serial Number 15268760 was reported as accurate.

colimat 2 · February 22, 2020

Serial Number 15265581 was reported as accurate.

Rcardkidz 4073 · December 23, 2019

Serial Number 15265327 was reported as accurate.

Changes since this report was submitted:
Size changed from 12 to 14
Factory Model changed from Colonial to Colonial Series

Anonymous · November 15, 2018

Serial Number 15267064 was reported as accurate.

Changes since this report was submitted:
Size changed from 12 to 14
Factory Model changed from Colonial to Colonial Series

oilseed Supporter 471 · April 28, 2018

Serial Number 15266962 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from Ser. to Colonial Series

Anonymous · May 29, 2017

Serial Number 15267679 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from Ser. to Colonial Series

Anonymous · February 9, 2016

Serial Number 15266075 was reported as inaccurate.

Note: 15j
Changes since this report was submitted:
Jewels changed from 17j to 15j
Factory Model changed from Ser. to Colonial Series
Plate changed from Unknown to 3/4 Split

JLashbrook 110 · October 29, 2015

Serial Number 15267708 was reported as inaccurate.

Note: 15J Colonial
Changes since this report was submitted:
Jewels changed from 17j to 15j
Factory Model changed from Ser. to Colonial Series
Plate changed from Unknown to 3/4 Split

cmdraven 4083 · May 30, 2015

Serial Number 15265875 was reported as inaccurate.

Note: 15 jewels
Changes since this report was submitted:
Jewels changed from 17j to 15j
Factory Model changed from Ser. to Colonial Series
Plate changed from Unknown to 3/4 Split

Anonymous · January 12, 2014

Serial Number 15267090 was reported as inaccurate.

Note: The model appears to be 1894, size 12
Changes since this report was submitted:
Jewels changed from 17j to 15j
Factory Model changed from Ser. to Colonial Series
Plate changed from Unknown to 3/4 Split

Anonymous · January 12, 2014

Serial Number 15267090 was reported as inaccurate.

Note: my movement has 15 Jewels and a swing out case
Changes since this report was submitted:
Jewels changed from 17j to 15j
Factory Model changed from Ser. to Colonial Series
Plate changed from Unknown to 3/4 Split

Anonymous · October 2, 2013

Serial Number 15267135 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 17j to 15j
Factory Model changed from Ser. to Colonial Series

Anonymous · June 8, 2013

Serial Number 15266441 was reported as inaccurate.

Note: 15 j
Changes since this report was submitted:
Jewels changed from 17j to 15j
Factory Model changed from Ser. to Colonial Series
Plate changed from Unknown to 3/4 Split

Anonymous · May 17, 2013

Serial Number 15267187 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Jewels changed from 17j to 15j
Factory Model changed from Ser. to Colonial Series
Plate changed from Unknown to 3/4 Split

Anonymous · February 20, 2013

Serial Number 15266862 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Jewels changed from 17j to 15j
Factory Model changed from Ser. to Colonial Series
Plate changed from Unknown to 3/4 Split
Waltham Grade No. 1420 Pocket Watch