No.B134091, Official RR Standard, hunting case model
19-jewel 16-size concentric damascened divided ¾ plate adjusted movement, signed "Ball Watch Co., Cleveland, O.", gilt RR medallion, gold center wheel, jewels in gold settings, bimetallic balance, overcoiled spring, micrometer regulator, stem set, white enamel dial signed "Official RR Standard, Ball Watch Co., Cleveland", arabic chapters, subsidiary seconds, blued hands, engine turned swing out Philadelphia 25-year open face case
53mm