Signed "American Watch Company, Waltham, Mass., No. 28711"
17-jewel M1859 18-size gilt movement modified with separate lever and escape wheel bridge, jewels in settings, diamond endstone, key wound and set, straight line counterpoised lever, blued escape wheel with wedge-shaped teeth, cut bimetallic balance with unusually clustered poising screws, free sprung blued helical hairspring, gold cuvette, signed double sunk white enamel dial, roman chapters, subsidiary seconds, blued hands with polished tips, engine turned R. & A. case with eagle trademark

52.5mm, 106.3 grams