It's a very rare vintage mechanical mens Swiss Eska watch in a very good condition. The Eska watch company was founded in 1918 in Grenchen, Switzerland. And existed till the end of 1980s.
An abbreviation of Sylvan Kocher & Cie SA, founder of the company. Bezel is in great condition. Mint original white dial with applied golden hour markers and matching golden hands. Dial and back are signed'Eska'.Some minor scratches on the glass and the case back. Serial number 11848 on the back. Movement: Swiss manual winding ETA 2390 cal. In excellent running condition, keeping correct time. Watch case diameter: 34 mm.
Watch band width: 18 mm. Wind up watch with Swiss movement in great condition made in the mid century era. Buyers outside of the U.