Antique HAMILTON 10 K Gold Filled – Open Face RailRoad Pocket Watch Case- 16 S! The case so beautiful, excellent condition, no brass, some minor scratch and ding! The crystal very good! The case said : Hamilton Watch Co. 10 K Gold Filled- Lancaster PA! Case number : K 212211. Hunting: The stem is at the 3:00 position, and the movement is meant to be mounted in a case that has a covering over the face. “Sidewinders” are hunting movements in openface cases. ” style=”box-sizing: border-box; -webkit-tap-highlight-color: transparent; color: rgb(27, 118, 176); text-decoration-line: none; background-color: transparent; -webkit-font-smoothing: antialiased;>. Production year of the movement within +/- 3 years>. Production date of the movement according to factory records.