Vintage Omega Swiss watch, Rare Tropical Patina, Cal. 266, Ref. 2639 from 1950'sThis vintage Omega Ref. 2639 is a standout example of early 1950s designhonest, wearable, and full of charm. With its 36 mm stainless steel case, 43 mm lug to lug span, and slim 10 mm thickness, it wears beautifully on the wrist without feeling oversized or delicate. Its a watch built for everyday wear, even decades after it left the factory. Inside ticks Omegas Caliber 266a hand wound movement from the brands renowned 30mm family. Known for its