Pocket Watch Database


From the American Horology Archive:
Waltham Grade No. 620 Pocket Watch
Waltham Grade No. 620 Pocket Watch

American Waltham Watch Co.

Grade: No. 620

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 11689546 Question Mark
Grade: No. 620 Question Mark
Model: 1899 Question Mark
Estimated Production Year: 1902 Question Mark
Run Quantity: 2,500 Question Mark
Grade/Model Run: 72 of 174 Question Mark
Grade/Model Total Production: 339,100 Question Mark
Variant Est. Production: 153,450 (16S-M1899-15J-ONP) Question Mark
Size: 16s Question Mark
Jewels: 15j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Bridge Type: Center Question Mark
Regulator: Church 1892 Question Mark
Hairspring: Breguet Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Movement Markings: A.W.W.Co.
Waltham, Mass.
15 Jewels
Case: Various Question Mark
Run ID: 17754.G72.16S1501.161899M467.O11332.P3812.15J4167 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.445 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
462.60 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
420.97 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.460% Question Mark
Registry Population:
Scoped for This Run Only
20 (0.80%) Question Mark
$ Estimated Value (12 Month Change): 5.10% Analyzing 1,581 Sales Question Mark
Research Note: #11689816: Verified as 17 Jewels with a plugged marking, changing the "15" to a "17" (consistent with factory practices).

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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 · October 17, 2024

Serial Number 11689133 was reported as accurate.

Anonymous · August 4, 2023

Serial Number 11691179 was reported as accurate.

Anonymous · September 5, 2022

Serial Number 11689816 was reported as inaccurate.

Note: This particular serial number has 17 jewels. The
extra jewels are holding the center wheel pivots.
The movement is stamped for 17 after the 15 was
removed by drilling the plate. Pictures provided.
Curator Response: Thanks for the report. This information has been noted in the research notes for this run.

PHIL1199 Supporter 1124 · April 22, 2022

Serial Number 11691494 was reported as accurate.

steve288 264 · July 15, 2021

Serial Number 11690133 was reported as accurate.

Anonymous · March 10, 2021

Serial Number 11689838 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

HarleyTompa 7 · February 9, 2021

Serial Number 11690973 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Mowerman666 13 · June 13, 2019

Serial Number 11690831 was reported as inaccurate.

Note: 17 jewells
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection so we can take a closer look.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Rcardkidz 4054 · June 4, 2019

Serial Number 11690831 was reported as inaccurate.

Note: Stamped 17 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:
Plate changed from 3/4 to Bridge

Anonymous · January 5, 2019

Serial Number 11690636 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · August 23, 2017

Serial Number 11690661 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · April 18, 2017

Serial Number 11690133 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · March 12, 2017

Serial Number 11690133 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · November 14, 2015

Serial Number 11691184 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · November 13, 2015

Serial Number 11691184 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · April 10, 2015

Serial Number 11690810 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

evelyndk 26 · August 12, 2014

Serial Number 11689257 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

RMoses1158 39 · January 11, 2014

Serial Number 11690779 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

djchurn 2 · December 13, 2013

Serial Number 11690776 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · October 27, 2013

Serial Number 11690661 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · October 12, 2013

Serial Number 11689583 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · September 14, 2013

Serial Number 11690501 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Waltham Grade No. 620 Pocket Watch
Waltham Grade No. 620 Pocket Watch