Elgin Grade 91 movement behind the dial featured in yesterday’s post. While factory records list a single run of 1,000 serial numbers designated for the Grade 91, it is estimated.
The Appleton, Tracy & Co. grade produced by the American Watch Company (Waltham) has roots that run deep in the company’s history. In 1850, Aaron Dennison, Edward Howard, David P..
This image exhibits the pillar plate jeweling on a Waltham Model 1857 Appleton, Tracy & Co. movement to contrast the 11-Jewel P.S. Bartlett that is only jeweled on the upper.
To contrast the recent posts related to the practice of faux jewel settings, this image represents true jewel settings on a Waltham Model 1857 Appleton, Tracy & Co. grade. A.
The earliest Model 1857 movements manufactured by Waltham feature a “sprung-under” hairspring and balance. In this arrangement, the hairspring is fitted underneath the balance wheel, and the balance cock can.
Not all Model 1857 movements manufactured by Waltham feature Bingham’s patent dust ring. Even when originally fitted with a dust ring, it was often discarded or lost by watchmakers while.