Pocket Watch Database

From the American Horology Archive:
Waltham Grade Crescent St. Pocket Watch

American Waltham Watch Co.

Grade: Crescent St.

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 770970
Grade: Crescent St.
Model: 1870
Estimated Production Date: April 1876 - September 1, 1877
Run Quantity: 1,000
Total Production: 17,880
Size: 18s
Jewels: 15j
Movement Configuration: Hunting
Movement Finish: Gilt
Movement Setting: Pin
Plate: Full Plate
Adjusted: Yes
Adjusted to Position: Yes
Data Research: c.1900 Waltham Factory Ledgers
1954 Waltham "Gray Book" List
Case: Various
Registry Population: 8 (0.80%)
Database Version: v49.391

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 770139 #139 Marketplace March 11, 2018
2 770247 #247 Marketplace February 26, 2017
3 770314 #314 Inferred
4 770650 #650 Collection December 07, 2014
5 770850 #850 Collection March 24, 2016
6 770877 #877 Marketplace August 26, 2017
7 770916 #916 Inferred
8 770970 #970 Collection February 25, 2020
Standard Deviation of Known Examples: 336.81 (Expected: 288.82, Δ47.99/4.80%)

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Data Verification Reports

770001
Verification Serial Map
771000

Rcardkidz 2743 · June 13, 2020

Serial Number 770694 was reported as accurate.

Anonymous · August 16, 2019

Serial Number 770846 was reported as accurate.

Anonymous · January 8, 2019

Serial Number 770417 was reported as accurate.

Anonymous · January 2, 2019

Serial Number 770683 was reported as accurate.

Anonymous · September 9, 2018

Serial Number 770916 was reported as accurate.

Anonymous · September 20, 2017

Serial Number 770247 was reported as accurate.

Anonymous · March 9, 2017

Serial Number 770247 was reported as accurate.

Anonymous · December 17, 2016

Serial Number 770614 was reported as accurate.

Anonymous · November 18, 2016

Serial Number 770314 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · March 31, 2016

Serial Number 770614 was reported as accurate.

Anonymous · March 18, 2016

Serial Number 770850 was reported as accurate.

Anonymous · March 7, 2016

Serial Number 770072 was reported as accurate.

sanjosetom 301 · February 22, 2016

Serial Number 770626 was reported as accurate.

Anonymous · February 2, 2016

Serial Number 770614 was reported as accurate.

Anonymous · October 4, 2015

Serial Number 770587 was reported as accurate.

Anonymous · February 2, 2015

Serial Number 770771 was reported as inaccurate.

Note: gilt movement, not nickel
Changes since this report was submitted:
Movement Finish changed from Nickel to Gilt

Anonymous · August 30, 2014

Serial Number 770273 was reported as accurate.

Waltham Grade Crescent St. Pocket Watch