Origins of the Waltham Model 57

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This monograph was originally published 2005 by NAWCC as Special Order Supplement No. 7. I converted it to web pages so it can be viewed online with active links. I added color pictures where available and updated content, especially regarding Dennison Howard & Davis and early Appleton Tracy & Co. watches. This format also enables me to publish future updates. Printable Acrobat PDF files are provided because the web pages will not print well; please understand, the objective here is online viewing, the print files are not formatted like the production monograph.

Record of Updates

Table of Contents
(62K bytes) PDF file August 17, 2019

Preface
(87K bytes) PDF file August 20, 2019

Evolution of the First Successful Industrialized Watch
(1.7M bytes) PDF file January 9, 2024

Design Changes in the Model 57
(1.4M bytes) PDF file January 9, 2024

Concluding Comments
(31K bytes) PDF file April 27, 2018

References and Notes
(347K bytes) PDF file January 7, 2024

Data Tables

Please note, tables are continually being updated (hopefully to be more correct and complete). While I have strived to validate much of the data recorded in these tables, that is not possible in most cases and the information from the source is taken verbatim. For example, 16 jewel movements are often mistakenly recorded as 15J and 11J movements are mistakenly recorded as 15J. Some data details are difficult to observe and might be misreported; e.g., information regarding escapements.

The right to download and store or output these Origins pages is granted to users for their personal use only, and certainly not for commercial applications. Any other reproduction, by any means - mechanical or electronic - without the express written permission of Ronald J. Price is strictly prohibited.

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