The Waltham Colonial pocket watch has a 9 jewel movement. The size is a special Colonial size which is similar in size to a 12s but is much thinner. This is an open face movement with a nickel finish. The watch is a Waltham model 1924. The serial number 29106200 puts the estimated production around 1935. The watch has a grade of 209. Check out our pocket watch movements by clicking here.