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: 12323162 Question Mark
Grade: No. 620 Question Mark
Model: 1899 Question Mark
Estimated Production Year: 1903 Question Mark
Run Quantity: 3,000 Question Mark
Grade/Model Run: 87 of 174 Question Mark
Grade/Model Total Production: 339,100 Question Mark
Variant Est. Production: 183,150 (16S-M1899-15J-HNP) Question Mark
Size: 16s Question Mark
Jewels: 15j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Hunting 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: Micrometric 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: 18134.G87.16S1607.161899M570.H5673.P4103.15J4240 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.452 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
558.35 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
508.09 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.555% Question Mark
Registry Population:
Scoped for This Run Only
16 (0.53%) Question Mark
$ Estimated Value (12 Month Change): 5.10% Analyzing 1,581 Sales Question Mark
Research Note: #12325389: Verified as Marked "17 Jewels" with a plug in the jewel count, indicating some or all of this run was upgraded from 15 jewels to 17 jewels at the factory.

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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 30, 2023

Serial Number 12323881 was reported as accurate.

Anonymous · February 19, 2021

Serial Number 12325389 was reported as accurate.

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

Anonymous · September 3, 2019

Serial Number 12322720 was reported as accurate.

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

Anonymous · May 6, 2019

Serial Number 12325389 was reported as inaccurate.

Note: My watch, 12325389, is stamped 17 jewels. I also
believe the plate is Bridge. The grade is A.W.W.
Co. I can send a photo.
Curator Response: Thanks for the report and images. This movement contains a plug in the jewel count, indicating it was upgraded at the factory from 15 to 17 jewels. This has now been included in the research notes for the run.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · February 12, 2019

Serial Number 12325491 was reported as accurate.

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

Anonymous · June 10, 2018

Serial Number 12324474 was reported as accurate.

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

Anonymous · June 5, 2018

Serial Number 12323508 was reported as inaccurate.

Note: This one is a 17 jewel
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

Anonymous · February 12, 2018

Serial Number 12322720 was reported as accurate.

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

Anonymous · May 18, 2016

Serial Number 12325144 was reported as accurate.

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

Kroider 1 · May 3, 2016

Serial Number 12323162 was reported as accurate.

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

Kroider 1 · May 3, 2016

Serial Number 12323162 was reported as accurate.

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

Kroider 1 · May 3, 2016

Serial Number 12323162 was reported as accurate.

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

Anonymous · July 31, 2015

Serial Number 12322562 was reported as accurate.

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

Anonymous · March 14, 2015

Serial Number 12323162 was reported as accurate.

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

Anonymous · September 9, 2014

Serial Number 12324371 was reported as accurate.

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

jeremyroy 199 · August 18, 2013

Serial Number 12324992 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