American Watch Co. 1870 Crescent Street

American Watch Co. 1870 Crescent Street movement

American Watch Co. Model 1870 Crescent Street - 18-size, 15-Jewels, chronometer balance, key wind and key set from the back, among the earliest to include a micrometer regulator. Manufactured circa 1871. The Model 1870 Crescent Street was the first American watch designed and marketed especially as a railroad watch.