Waltham Crescent Street

The Crescent Street is a manual-winding movement manufactured by Waltham as part of its Railroad Grade family. It features a nickel plate with 15 to 21 ruby jewels set in gold, a patent regulator, and a compensation balance spring. The movement is adjusted for temperature, isochronism, and position, and incorporates a patent Breguet hairspring. It was used in the Model 1857, 1883, and 1892 pocket watches and was available with an up/down wind indicator. Production has been discontinued.