For sale is a manual-wind Longines Cosmo that I believe dates to the late 1950s to early 1960s. The watch features a silver sunburst dial with applied indices and the cursive “Cosmo” script. The gold-filled case measures approximately 34mm excluding the crown (about 35–36mm including the crown) and shows normal, honest wear consistent with age. The acrylic crystal shows light marks typical for a watch of this era. The manual-wind Longines movement winds smoothly and the watch is currently running. I timed it over approximately 24 hours using a stopwatch and it ran without issue. The watch does not have a seconds hand, and I have not tested long-term accuracy or placed it on a timegrapher. There is no known recent service history. The watch will ship on an unworn Kuoe tan leather strap with a gold-tone buckle. I will also include a vintage aftermarket gold mesh bracelet. Happy to answer questions or provide additional photos. Price is $250 + shipping. Payment via PayPal F&F. Open to trades, but prefer a sale.