OMEGA vintage men's wristwatch ref. 166.001 in need of service. 18K yellow gold. Mechanical automatic movement cal. 565, in need of service. Restored, black dial with date display, gold-plated baton indices (5 o'clock index replaced) and gold-plated hands. New, black leather strap with gold-plated original Omega pin buckle. Used condition, clear signs of wear, gilding partially heavily rubbed. Diameter approx. 34 mm measured without crown.