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

(Alternatively Grade No. 625)

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 12728545 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: 92 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: 18484.G92.16S1705.161899M661.H5861.P4349.15J4272 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.462 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
11 (0.37%) Question Mark
$ Estimated Value (12 Month Change): 5.10% Analyzing 1,581 Sales Question Mark

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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.


MoatsJustin1 top-contributor 5269 · December 7, 2023

Serial Number 12726955 was reported as accurate.

Anonymous · December 4, 2021

Serial Number 12729208 was reported as accurate.

Anonymous · April 10, 2019

Serial Number 12728583 was reported as accurate.

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

jjr9001 1 · May 3, 2018

Serial Number 12726565 was reported as accurate.

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

Anonymous · May 3, 2018

Serial Number 12726565 was reported as accurate.

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

Anonymous · March 7, 2016

Serial Number 12727028 was reported as inaccurate.

Note: Watch is stamped 15 jewels
Changes since this report was submitted:
Jewels changed from 17j to 15j
Plate changed from 3/4 to Bridge

Anonymous · September 25, 2015

Serial Number 12729358 was reported as inaccurate.

Note: Nickel finish
Changes since this report was submitted:
Jewels changed from 17j to 15j
Plate changed from 3/4 to Bridge

tremendez 17 · September 15, 2015

Serial Number 12727953 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 17j to 15j
Plate changed from 3/4 to Bridge

Anonymous · May 20, 2014

Serial Number 12728387 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 17j to 15j
Plate changed from 3/4 to Bridge

Anonymous · September 17, 2013

Serial Number 12729086 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Jewels changed from 17j to 15j
Plate changed from 3/4 to Bridge

Anonymous · April 15, 2013

Serial Number 12729086 was reported as inaccurate.

Note: 15j not 17j
Changes since this report was submitted:
Jewels changed from 17j to 15j
Plate changed from 3/4 to Bridge

Anonymous · February 9, 2013

Serial Number 12728545 was reported as inaccurate.

Note: Example Image is Open face, not Hunting. 12728545
is 15j, not 17.
Changes since this report was submitted:
Jewels changed from 17j to 15j
Plate changed from 3/4 to Bridge
Waltham Grade No. 620 Pocket Watch
Waltham Grade No. 620 Pocket Watch