J.E. CALDWELL & Co. Open Face 14KT Yellow Gold Pocket Watch. Case: 14K yellow gold, 42.50mm in diameter, stamped with the initials â€œEPâ€ on the back of the case. Movement: Made by Ed. Koehn, engraved: â€œJ.E. Caldwell made by ED Koehn GENEVAâ€, movement number: 87631. Dial: Champagne, hour letters numerals, blued spade hands, seconds sub-dial at 6. Condition: Dial is good, case is good and movement is good and running. Gross Weight: 42.00 gm. James E. Caldwell worked for a short period of time on Maiden Lane, in New York City, before opening a small watchmaker's shop on Fifth and Chestnut Street in Philadelphia, sometime in the early 1830s. In 1848, the firm took on its current name, J. E. Caldwell and Company. In 1953, under the direction of AustÃ¯on Homer, who had become president of Caldwell's the previous year, the company began a branch store expansion, opening their second location in the Hotel Dupont in Wilmington, Delaware. Caldwell & Co. was purchased by Henry Birks & Sons, a Montreal-based jeweller and in August 1992, was acquired by Carlyle & Co., a family owned jewellery concern in Greensboro, North Carolina. Koehn was very successful at Patek Philippe and was one of three men who replaced company founder Vincent Gotkowski upon his retirement in 1876. Koehn left Patek in 1891, when he purchased the Robert Ekegren firm (and left it to his son in 1908, also named Edouard Koehn), updating the factory using the experience he had gained at Patek Philippe, while also implementing his own ideas and inventions. The descriptions listed should not be construed as an appraisal. The detail is provided as a guideline for color, clarity, weights and measurements to the best of our ability. We welcome inspections. WE SHIP WORLDWIDE!