Waltham Crescent Street Model 1870: Square Impulse Jewel Pallet Fork Charles Vander Woerd’s innovative square impulse jewel was fitted on every Model 1870 Crescent Street produced at the Waltham factory..
Waltham Crescent Street Model 1870: Square Impulse Jewel As evident in previous posts, Waltham’s Model 1870 Crescent Street is full of innovative advancements from the mind of Charles Vander Woerd..
Waltham Model 1870 Crescent Street (18-Size, 15 Jewels, Button-Set) [Regulator Patent Illustration] Every Waltham Model 1870 Crescent Street movement features Charles Vander Woerd’s patent micrometric regulator, allowing precision changes in.
Waltham Model 1870 Crescent Street (18-Size, 15 Jewels, Button-Set) [Regulator Image] [Regulator Image] Every Waltham Model 1870 Crescent Street movement features Charles Vander Woerd’s patent micrometric regulator, allowing precision changes.
Waltham Model 1870 Crescent Street (18-Size, 15 Jewels, Button-Set) [Under Dial] The patent issued to Charles V. Woerd on August 13, 1867 for his setting mechanism design was never implemented.
Waltham Model 1870 Crescent Street (18-Size, 15 Jewels, Button-Set) Continuing our study of Waltham's Model 1870 Crescent Street, the button-set variation represents the next progression following the transition to a.
