Pocket Watch Database

From the American Horology Archive:
Waltham Grade No. 1621 Pocket Watch

American Waltham Watch Co.

Grade: No. 1621

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 33824943 Question Mark
Grade: No. 1621 Question Mark
Variation: Riverside Question Mark
Model: 1908 Question Mark
Estimated Production Date: June 1953 Question Mark
Run Quantity: 1,400 Question Mark
Grade/Model Run: 21 of 22 Question Mark
Grade/Model Total Production: 77,738 Question Mark
Size: 16s Question Mark
Jewels: 21j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever or Pendant Question Mark
Plate: Bridge Plate Question Mark
Regulator: Plain Question Mark
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 3 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Total Adjustments: 5 Question Mark
Railroad Grade: No Question Mark
U.S. Patents: 940117 Question Mark
Case: Various Question Mark
Run ID: 26084.G21.16S3964.161908M1484.O16277.L19.21J659 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.457 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
234.05 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
212.98 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.233% Question Mark
Registry Population:
Scoped for This Run Only
12 (0.86%) Question Mark
$ Estimated Value (12 Month Change): 10.71% Analyzing 453 Sales Question Mark
Research Note: Waltham Serial Lists designate the previous run as Size 6/0, Model D, Grade S.S.-S.R. with 21 Jewels. However, reports indicate the last 400 movements in that run may actually have been part of this run of Size 16, Model A, Grade No. 1621 with 21 Jewels.

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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.


Scuba75 Supporter 34 · August 25, 2021

Serial Number 33825357 was reported as accurate.

Rabajohn 1 · January 12, 2021

Serial Number 33824315 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from ? to No
Plate changed from 3/4 to Bridge

Anonymous · June 8, 2020

Serial Number 33824631 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from ? to No
Plate changed from 3/4 to Bridge

Anonymous · August 17, 2019

Serial Number 33824993 was reported as accurate.

Changes since this report was submitted:
Adjusted # Positions changed from 5 to 3
Railroad Grade changed from ? to No
Plate changed from 3/4 to Bridge

Anonymous · October 14, 2018

Serial Number 33824198 was reported as inaccurate.

Note: This s# belongs 16s 21j grade 16-A with 5 adj
with polished plates looks to be ruby jewels
Changes since this report was submitted:
Size changed from 6/0 to 16
Factory Model changed from Mil to 1908
Adjusted changed from No to Yes
Plate changed from Unknown to Bridge

Anonymous · November 21, 2017

Serial Number 33824667 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from ? to No

Anonymous · June 29, 2017

Serial Number 33825224 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from ? to No

Anonymous · June 27, 2017

Serial Number 33824510 was reported as inaccurate.

Note: 5 adjustments
Changes since this report was submitted:
Adjusted changed from No to Yes
Railroad Grade changed from ? to No

Anonymous · April 28, 2016

Serial Number 33824775 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from No to Yes
Railroad Grade changed from ? to No

Anonymous · October 20, 2015

Serial Number 33824610 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from No to Yes

timeclock3 1 · August 4, 2015

Serial Number 33824082 was reported as inaccurate.

Note: Serial number 33824082 is a size 16 not 6/0 with a
grade 16-A
movement . It has a three quarter polished
plate, 21 jewels
and 5 adjustments.
David Sperling
Changes since this report was submitted:
Size changed from 6/0 to 16
Factory Model changed from Mil to 1908
Adjusted changed from No to Yes
Plate changed from Unknown to Bridge

Anonymous · January 23, 2014

Serial Number 33824402 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from No to Yes

Anonymous · October 15, 2013

Serial Number 33824285 was reported as accurate.

Changes since this report was submitted:
Size changed from 6/0 to 16
Factory Model changed from Mil to 1908
Adjusted changed from No to Yes

Anonymous · December 25, 2012

Serial Number 33824819 was reported as inaccurate.

Note: Ajusted 5 positions
Changes since this report was submitted:
Movement Finish changed from Unknown to Nickel
Movement Setting changed from Unknown to Lever or Pendant
Adjusted changed from No to Yes
Adjusted # Positions changed from Unknown to 3
Plate changed from Unknown to Bridge

Anonymous · December 1, 2012

Serial Number 33824819 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from No to Yes
Waltham Grade No. 1621 Pocket Watch