This is a vintage Wittnauer manual-wind men's dress watch, likely from the 1950s or 1960s. It is very accurate, runs great, winds beautifully, and the second hands moves smoothly. Fantastic condition with beautiful patina. The watch hands seem to have not aged at all for a clean look. I have tested this watch for a few weeks and it keeps time really well for a 40 - 48 hour time period Wittnauer is a historically significant American brand that was a long-time partner and subsidiary of Longines. This specific model belongs to their classic dress line, characterized by a minimalist mid-century design 10k Rolled Gold Plate (RGP) round case, usually measuring around 32.5mm to 33.5mm in diameter without the crown.