Omega Speedmaster Moonphase Professional Moon Aventurine Dial (Reference 311.30.44.32.01.001) is a highly distinctive and sought-after men's/unisex timepiece, renowned for its captivating aesthetic. The 44mm steel case houses a mesmerizing black aventurine dial, creating a "starry night" effect that beautifully complements the moon phase complication. Powered by the reliable manual-winding Caliber 1866 movement with a 48-hour power reserve, it embodies Omega's precision and horological heritage. This pre-owned watch is in very good condition, showing minor wear, and comes complete with its original box and papers.