This example is a 15 jewel, Stem wind, nail set serial number 650,763, ca. 1872. Single sunk script American Watch Co. dial, Roman numerals. 18 karat American Watch Co hunting case. Fitch's patent setting mechanism appears on a number of models made during 1872 including the 1872 model "16 size," 1873 model 8 size and 1857 model.
