As of my last knowledge update in January 2022, Omega Speedmaster watches with white dials have been part of the collection. The Speedmaster, known for its iconic association with space exploration, is available in various designs and dial colors to cater to different preferences.For specific details on Omega Speedmaster models with a white dial, including variations, features, and availability, it’s recommended to check Omega’s official website or consult with authorized Omega dealers. These sources will provide the most accurate and up-to-date information on the current offerings within the Speedmaster collection.