Vintage Omega De Ville Challenge Tank, Champagne guilloché dial from 1982This Omega De Ville Challenge from 1982 is a perfect example of how Omega brought elegance into the quartz erano compromise on design, no shortcuts on detail. What sets this watch apart is the finely textured dialan intricate geometric pattern that plays beautifully with the light. It's both refined and confident, giving the minimalist layout real depth. No numerals, no fussjust precision finishing and timeless symmetry. The gold plated tank case is