Pocket Watch Database


From the American Horology Archive:
Waltham Grade Riverside Pocket Watch

American Waltham Watch Co.

Grade: Riverside

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 23019661 Question Mark
Grade: Riverside Question Mark
Model: Colonial Series Question Mark
Estimated Production Year: 1919 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 18 of 19 Question Mark
Grade/Model Total Production: 11,662 Question Mark
Size: 14s Question Mark
Jewels: 19j 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: Yes Question Mark
Adjusted to Position: Yes Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 24325.G1009.14S2537.M108.O15125.P9336.19J452 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.479 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
32.25 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
29.35 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.032% Question Mark
Registry Population:
Scoped for This Run Only
7 (0.70%) Question Mark
$ Estimated Value (12 Month Change): 0% Analyzing 64 Sales Question Mark
Research Note: Waltham Serial Ledgers designate this run as "Col. Series Riverside" (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.


Anonymous · June 12, 2023

Serial Number 23019831 was reported as accurate.

JerryT Waltham Expert Small Watch Expert 425 · May 26, 2021

Serial Number 23019033 was reported as inaccurate.

Note: This is not a "Colonial A", which was a very
different thin movement. This is the "Colonial
Series" which has a 14-size pillar plate 12-size
top plates/bridges. This run of 1,000 movements
is correct in the gray book.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Factory Model changed from Colonial A to Colonial Series
Plate changed from Unknown to 3/4 Split

sanjosetom 313 · June 26, 2019

Serial Number 23019181 was reported as accurate.

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

jayjiang0830 47 · March 12, 2018

Serial Number 23019562 was reported as accurate.

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

Anonymous · July 18, 2016

Serial Number 23019059 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from Colonial to Colonial Series
Waltham Grade Riverside Pocket Watch