The Pre Owned Omega Speedmaster Moonwatch Professional Chronograph 311.30.42.30.01.005 Manual Winding 42 mm is an icon of space age horology. With its manual winding movement and 42 mm dial, it delivers precision and reliability while honoring the legendary Moonwatch legacy. The classic chronograph dial maintains a perfect balance of functionality and timeless design, reflecting decades of Omega innovation. A statement of heritage and technical mastery, this Speedmaster is a quintessential piece for collectors and enthusiasts alike.