Pocket Watch Database

From the American Horology Archive:
Waltham Grade Martyn Square Pocket Watch

American Waltham Watch Co.

Grade: Martyn Square

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 832748
Grade: Martyn Square
Model: 1857
Estimated Production Date: October 1875 - November 1, 1875
Run Quantity: 100
Grade/Model Run: 9 of 108
Grade/Model Total Production: 7,960
Size: 18s
Jewels: 7j
Movement Configuration: Adaptable
Movement Finish: Gilt
Movement Setting: Key
Plate: Full Plate
Balance Type: Solid
Balance Material: Gold
Adjusted: No
Railroad Grade: No
Case: Various
Run ID: 5855.G17.18S5203.181857M4981.O5697.K5697.7J641
Data Research: c.1900 Waltham Factory Ledger Book 1 [NAWCC]
c.1900 Waltham Factory Ledgers [Ehrhardt Transcription]
1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Database Version: v52.354
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
21.25
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
19.34
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.021%
Registry Population: 1 (1.00%)

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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.


ashleigh 56 · December 11, 2022

Serial Number 832748 was reported as inaccurate.

Note: Mr cuator, have uploaded pics to my collection,
what does the date mean??????
Curator Response: That is the patent date for Fogg's safety pinion. https://pocketwatchdatabase.com/reference/patent/46343/waltham-watch-safety-pinion

ashleigh 56 · November 23, 2022

Serial Number 832748 was reported as inaccurate.

Note: All is correct, but inside the movement it the
date February 14th 1865, not sure what this
signifies.
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

bubba70 543 · April 3, 2019

Serial Number 832704 was reported as accurate.

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

bubba70 543 · April 2, 2019

Serial Number 832704 was reported as accurate.

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

Anonymous · March 18, 2018

Serial Number 832773 was reported as accurate.

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

Anonymous · June 20, 2015

Serial Number 832733 was reported as accurate.

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