The so-called Sporting Watches (chronodrometer stop watch) followed the second run P.S. Bartlett in serial number (13701). The stop watch complication was built on the Model 57 design. A wire lever through the plate stops and holds the balance wheel when the stop button is pushed. It was not very practical nor successful. On the other hand, the culture in America in 1858 - 1860s probably had more to do with its lack of success. Porcelain single sunk dial signed "Improved sporting watch JAs Appleton Jr. Waltham, Mass."; At&Co silver HC 7137. Also see another example in the "Complicated Waltham Watches".
