looking for appraisal. american waltham pocket watch with a "1934 a century of progress fob". i believe the finish is brass? the serial number is "643271". there is another number on the movement and it is "12223025". the back of the watch appears to have a pattern of leaves. the face diameter is approx 1 3/4"
Based upon the movement serial number (12223025), your watch is a circa 1903 18-size 7-jewel model 1883 "Sterling". This is a relatively low-grade watch that was made in large numbers.
Value is pretty low: $50-$75 In fact, there is currently an almost identical watch on eBay with a buy-it-now price of $75.