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: 883414
Grade: Martyn Square
Model: 1857
Estimated Production Date: January 1876 - March 1876
Run Quantity: 500
Grade/Model Run: 29 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: Steel
Adjusted: No
Railroad Grade: No
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
Case: Various
Run ID: 6164.G59.18S5340.181857M5118.O5937.K5937.7J792
Database Version: v52.245
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: 4 (0.80%)

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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.


Anonymous · July 1, 2023

Serial Number 883468 was reported as accurate.

Rcardkidz 3459 · July 16, 2022

Serial Number 883634 was reported as accurate.

Anonymous · May 16, 2021

Serial Number 883280 was reported as accurate.

ticketytockuk 113 · April 8, 2020

Serial Number 883641 was reported as accurate.

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

Anonymous · March 13, 2019

Serial Number 883658 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Adjusted changed from Yes to No

Anonymous · July 12, 2016

Serial Number 883607 was reported as inaccurate.

Note: 15 jewels
Changes since this report was submitted:
Adjusted changed from Yes to No

Anonymous · May 10, 2015

Serial Number 883611 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Adjusted changed from Yes to No
Waltham Grade Martyn Square Pocket Watch