ENGLISH 18K YELLOW GOLD OPEN-FACE POCKET WATCH,early-to-mid 19th century; made by Sir John Bennett, London. Plain, bright-polished case with gold dial having chapter ring with black Roman numerals centering floral and leaf chased roundel; bull's eye crystal; key-wind movement - D: 1 1/2 in. Gross wt: 1 oz. 6 dwt. Estimate $400-600