Edouard Koehn 41.1 x 3.4 mm Extra Thin High-Grade Swiss Antique Pocket Watch Movement. This movement measures approximately 41.1 mm in diameter and 3.4 mm in center thickness. The dial signed “ED KOEHN GENĂˆVE” is in attractive condition; the moon hands are in very good vintage condition overall; the second hand is slightly bent –…