Pocket Watch Database

From the American Horology Archive:
Waltham Grade No. 645 Pocket Watch

American Waltham Watch Co.

Grade: No. 645

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 19078602
Grade: No. 645
Model: 1908
Estimated Production Year: 1913
Run Quantity: 1,000
Grade/Model Run: 25 of 66
Grade/Model Total Production: 59,300
Size: 16s
Jewels: 21j
Jewel Material: Ruby
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Lever
Plate: Bridge Plate
Double Roller: Yes
Barrel: Jeweled Motor
Regulator: Micrometer
Hairspring: Breguet
Pallet Jewel Material: Sapphire
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Case: Various
Run ID: 22330.G31.16S2980.161908M550.O13868.L5352.21J426
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
177.55
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
162.47
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.177%
Registry Population: 19 (1.90%)
$ Estimated Value (12 Month Change): -6.06% Analyzing 453 Sales

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.


Rcardkidz 3398 · July 16, 2022

Serial Number 19078544 was reported as accurate.

Anonymous · April 12, 2022

Serial Number 19078415 was reported as accurate.

garydurie Supporter 29 · August 31, 2021

Serial Number 19078500 was reported as accurate.

Anonymous · March 27, 2021

Serial Number 19078807 was reported as accurate.

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

Anonymous · November 16, 2020

Serial Number 19078124 was reported as accurate.

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

Superdave64 Supporter 18 · April 19, 2019

Serial Number 19078166 was reported as accurate.

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

Anonymous · October 17, 2017

Serial Number 19078069 was reported as inaccurate.

Note: This watch is 23 jewels ... not 21 jewels
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 · July 4, 2017

Serial Number 19078396 was reported as accurate.

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

Anonymous · March 19, 2017

Serial Number 19078174 was reported as accurate.

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

Anonymous · March 5, 2017

Serial Number 19078174 was reported as accurate.

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

MichaelB 150 · March 6, 2014

Serial Number 19078500 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Waltham Grade No. 645 Pocket Watch