No. B207397, Order of Railway Conductors Official Standard
21-jewel 16-size concentric damascened divided ¾ plate movement adjusted to 5 positions, signed "Ball Watch Co., Cleveland, O.", gilt ORC medallion, gold center wheel, jewels in gold settings, double roller escapement, bimetallic balance, overcoiled spring, micrometer regulator, lever set, white enamel dial signed "ORC Standard, Ball & Co., Cleveland", arabic chapters, subsidiary seconds, blued hands, engraved screw back Keystone 10K gold filled Ball Model open face case with pierced bow
50mm