Origins of the Waltham Model 57
Update History
by Ron Price
Copyright © 2018 - 2023
originally published 2005 by NAWCC as Special Order Supplement No. 7
this updated online version at
http://www.plads.com/m57/monograph/
August 17, 2019
- Updated [ref. 101] Statistical Analysis in References and Notes to incorporate recent additions in the Samuel Curtis and Dennison, Howard & Davis data tables.
August 20, 2019
- Added names to the Contributor list in the Preface page.
August 22, 2019
- Updated reference #94 in References.
- Corrected typos in References for r100, r106 Case 116, and Middlesex deeds
August 27, 2019
- Update Table 2. BWCo Watches with Factory Cases under Data from Watchcases in Reference for r100.
August 29, 2019
- All items this date are in main chapter evolution:
- Posted link to picture of Fitts #16 under TheHoward, Davis & Dennison Watch.
- Posted link to picture of Warren #31 under The Warren Watch.
- Edit first paragraph under The Samuel Curtis Watch.
- Fixed typo in paragraph above Figure 12.
- Fixed typo in paragraph above Figure 15.
- Couple minor edits below Figure 15.
- Edit statement regarding American Watchh Company under Remaining Model 57 Watches.
September 2, 2019
- All items this date are in main chapter evolution:
- Added quote from Robbins in paragraph below Figure 15.
- Added paragraph regarding insolvency inventory document above The AT&Co Watch.
- Added comments about 16J AT&Co movements above Figure 16A.
- Added quote from Robbins in paragraph below Depression of 1857.
- Added statement regarding Robbins stock of watches in 1st paragraph below American Watch Company.
January 17, 2020
- All items this date are in "References and Notes":
- Updated 101 Statistical Analysis to include recent DH&D entries; i.e., Surviving Movements chart, Table 1, and Table 2 , plus accompanying text.
- Ditto Table 3 in 102 Sales Records (underlined #4092).
February 1, 2020
- Replaced pictures in Figures 6 and 18 in Evolution with color.
- Changes to Position of Serial Number (first page) in Design Changes.
- Replaced Figure 38 dial #2 in Design Changes.
- Replaced Figure 48 picture in Design Changes.
June 4, 2020
- All items this date are in "References and Notes":
- Added surviving DH&D #2347 to chart and Table 1
- Updated text in Data from Watchcases above and below Table 2
- Added DH&D #6058 to Table 2
- Updatated Case No. 116, for sheets 3,4,5 & 153
June 8, 2020
- Updated Table 7 when features were introduced in Design Changes.
July 7, 2020
- All items this date are in main chapter evolution including various spelling, minor replacement words and grammar changes:
- Added information about Samuel Curtis and changed Figure 2
- Added information about Royal Robbins, his picture, and insolvency documents in the area above The Howard & Rice Watch
- Added picture of Roxbury factory and info above Figure 11
- Added BWCo production info in the 4 paragraphs above The Appleton Tracy & Co Watch
- Edited text above Figure 16 and info about Figure 16A
July 11, 2020
- Updated 101 Ref & Notes to include recent DH&D entries in Surviving Movements chart and Table 1, plus accompanying text..
January 28, 2021
- Added note about Howard and Dennison having same address end 2nd paragraph in Evolution
- Added note about Dennison modeled Johnson movement end 2nd paragraph above bottom in Evolution
- Added note regarding 1856 ad at beginning 1st paragraph under Bankruptcy in Evolution .
January 30, 2021
- Added paragraph about dials just above Miscellaneous Features in Design Changes.
- Updated Table 7 when features were introduced in Design Changes
March 30, 2021
- Updated surviving DH&D table and chart, and cases table in Ref & Notes.
January 28, 2022
- Updated surviving DH&D table and chart, and cases table in Ref & Notes.
February 5, 2022
- Updated information about Royal Ronnins photos after the Bankruptcy in Evolution.
- Added information from Clint Geller on the Model 1859 Watch in Evolution.
- Added info on the discharge of Dennison under Fig 23, and about the naming of Ellery under the Ellery Watch in Evolution.
February 8, 2022
- Updated Table 4 on S/Ns under top plate in Ref & Notes.
February 21, 2023
- Updated surviving DH&D table1 and chart in Ref & Notes.
December 24, 2023
- Updated stem winds in Design Cchanges.
January 7, 2024
- Under Ref & Notes:
- added new reference NR after 99
- added DHD 3334 & 3355 to Table 1 and graph
- added H&R 6083, DHD 3164 & 3334 to Table 2
- Added comment in Design Changes about escapements that their parts are listed in the 1857 inventory.
- Under Evolution
- added paragraph regarding Am Horologe Co, funding from Howard and Davis
- added paragraph about Dennison salary under Tracy Baker & Co just above Figure 14
- added comment at end of 2nd paragraph under Model 1859 about John Wilson and prototype
- added comment at end of paragraph under Figure 23 that Dennison made James Russell watches
- removed extra line space after Figure 26
January 9, 2024
- Correction in Design Changes Figure 60: PSB 6669 --> AT&Co 6669.
- Gave reference for Figure 14 in Evolution
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