Illinois Watch Co. Grade 409 - 12-Size, Model 3, 21 Jewels, c.1913, Serial No. 2589934 For those that have asked about the watch that was featured in the post on Christmas day, here is a shot of the movement - c.1913 Grade 409 manufactured at the...
Waltham “Wm. Ellery” - Model 1865, 10-Size, 11 Jewels, c.1874, Serial No. 758654 Last week, we took a closer look at Charles W. Fogg’s patented safety pinion from the Model.
Waltham Crescent Street Model 1870: Fogg's Patent Pinion - Threaded Center Wheel Arbor The safety pinion patented by Charles W. Fogg in 1865 was a critical advancement in American horology,.
Waltham Crescent Street Model 1870: Fogg's Patent Pinion - February 14, 1865 On February 14, 1865, Charles W. Fogg received a patent for his “Safety Pinion.” While not the first patented safety pinion, Fogg’s design represents the first practical application utilized in mass production, allowing the...
Waltham Crescent Street Model 1870: Patent Pinion As indicated by the “Patent Pinion” marking on the barrel bridge, the Waltham’s Model 1870 Crescent Street features a center safety pinion, an.
Waltham Crescent Street Model 1870: Pallet Fork and Escape Wheel Poised Pallet Fork and Escape Wheel from Waltham’s Model 1870 Crescent Street, Serial Number 690511. These are the parts responsible.
Waltham Crescent Street Model 1870: Deconstructed Parts A look inside Waltham’s Model 1870 Crescent Street, Serial Number 690511. Notice how each plate is marked with matching numbers to ensure proper production and assembly at the factory.
Waltham Crescent Street Model 1870: "Woerd's Patents" Marking What do most artists do when they finish a work of art? They sign their name to it, of course. The same.
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. One such innovation is the square impulse jewel fitted on every Model 1870, a notable departure...