prada leather handbags The Speedmaster Professional Moonwatch Moonphase is available in ceramic, gold, and platinum. One example is the Sedna gold ref. 304.63.44.52.01.001 on a brown leather strap. This variant uses the Omega caliber 9905 with a moon phase display at 6 o'clock. This model sells for approximately 23,000 USD on Chrono24. Subscribe