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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/waltham/16630662
Access Date: January 22, 2025
From the American Horology Archive:
Waltham Grade 8 Day Pocket Watch
American Waltham Watch Co.

Grade: 8 Day

Chronometer

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 16630662 Question Mark
Grade: 8 Day Question Mark
Variation: Chronometer Question Mark
Model: 1910 Question Mark
Estimated Production Year: 1910 Question Mark
Run Quantity: 3,000 Question Mark
Grade/Model Run: 1 of 139 Question Mark
Grade/Model Total Production: 806,000 Question Mark
Size: 37s Question Mark
Jewels: 15j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Plate: 3/4 Plate Question Mark
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 20828.G1.37S1.371910M1.O12999.P6197.15J4837 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
 Question Mark
Database Version: v52.563 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 2,427.78 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 2,208.28 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 2.412% Question Mark
Registry Population:
Scoped for This Run Only		4 (0.13%) Question Mark
Value Guide
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Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 4 watches in the population registry for this run.
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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 · August 27, 2023

Serial Number 16629604 was reported as inaccurate.

Note: Mine has two small dials. One shows fully wound
the other says Waltham 8 day. At the bottom is a
larger dial for seconds. The movement is 15
jewels. I will upload pictures if you like
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · February 25, 2021

Serial Number 16630689 was reported as accurate.

Anonymous · February 2, 2021

Serial Number 16628814 was reported as accurate.

Anonymous · June 12, 2020

Serial Number 16630637 was reported as accurate.

Anonymous · February 26, 2020

Serial Number 16630548 was reported as accurate.

Anonymous · July 25, 2019

Serial Number 16628683 was reported as accurate.

Anonymous · December 9, 2018

Serial Number 16630499 was reported as accurate.

Anonymous · October 15, 2018

Serial Number 16629506 was reported as accurate.

Anonymous · April 24, 2018

Serial Number 16630815 was reported as accurate.

Anonymous · February 13, 2018

Serial Number 16631044 was reported as accurate.

Anonymous · January 29, 2018

Serial Number 16630792 was reported as accurate.

Anonymous · November 26, 2017

Serial Number 16630342 was reported as accurate.

Anonymous · November 19, 2017

Serial Number 16628531 was reported as accurate.

Anonymous · June 19, 2017

Serial Number 16630815 was reported as accurate.

Anonymous · October 20, 2016

Serial Number 16629971 was reported as accurate.

ptybin 24 · October 11, 2014

Serial Number 16630662 was reported as accurate.

fordcasa Top Contributor Supporter 444 · May 29, 2014

Serial Number 16628897 was reported as inaccurate.

Note: 37s 8 Day Adjusted
Nickel 3/4 plate
Changes since this report was submitted:
Size changed from Unknown to 37
Plate changed from Unknown to 3/4

Anonymous · March 2, 2014

Serial Number 16630499 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Size changed from Unknown to 37
Plate changed from Unknown to 3/4

Anonymous · August 1, 2013

Serial Number 16629798 was reported as accurate.

Waltham Grade 8 Day Pocket Watch