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: 22782742 Question Mark
Grade: No. 620 Question Mark
Model: 1908 Question Mark
Estimated Production Year: 1919 Question Mark
Run Quantity: 3,000 Question Mark
Grade/Model Run: 174 of 197 Question Mark
Grade/Model Total Production: 354,099 Question Mark
Variant Est. Production: 189,599 (16S-M1908-15J-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
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: 24262.G348.16S3602.161908M1155.O15085.P9278.15J5718 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.526 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
612.99 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
557.82 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.609% Question Mark
Registry Population:
Scoped for This Run Only
14 (0.47%) Question Mark
$ Estimated Value (12 Month Change): 6.82% Analyzing 1,500 Sales Question Mark

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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 · February 21, 2024

Serial Number 22784542 was reported as inaccurate.

Note: not screw set pressed in jewels

Anonymous · February 20, 2024

Serial Number 22784542 was reported as accurate.

Anonymous · July 19, 2022

Serial Number 22782133 was reported as inaccurate.

Note: Watch is 17j. "adjusted" is on the bridge plate as
it wraps under the barrel. It has a "cut out" on
the bridge plate for the escapement, with no
screws for the jewel setting. It appears the same
as model 1899, Riverside grade. "Riverside" is not
on the bridge plate, just "AWW Co" & Waltham
Mass. underneath. It is pendant set.
Curator Response: Thanks for the report. It sounds like you have a modified watch with plates possibly borrowed from another movement. Feel free to post images of your watch for documentation.
Changes since this report was submitted:
Movement Finish changed from Gilt or Nickel to Nickel

Ryder87 1 · June 14, 2022

Serial Number 22784457 was reported as accurate.

Changes since this report was submitted:
Movement Finish changed from Gilt or Nickel to Nickel

Anonymous · October 17, 2020

Serial Number 22782576 was reported as accurate.

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

Anonymous · January 17, 2018

Serial Number 22784429 was reported as accurate.

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

Anonymous · February 26, 2017

Serial Number 22784412 was reported as accurate.

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

Anonymous · February 15, 2015

Serial Number 22783912 was reported as accurate.

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

Anonymous · December 20, 2014

Serial Number 22783286 was reported as accurate.

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

Anonymous · June 26, 2013

Serial Number 22784108 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