Gregoire Rossier is a Swiss biologist specialising in bioinformatics. He became a watch enthusiast at the age of 13 when he inherited his first Omega Seamaster, but it was only much later that he started serious research on the Moonwatch. Applying his experience as a researcher, he developed a systematic database of thousands of entries referencing all his observations as well as the market trends for several versions of the Speedmaster.

Anthony Marquie is a French national and a trained aeronautical engineer. He swiftly turned to an international career in finance and investments. He has always been a collector of both modern and vintage watches, including many icons from the Omega production. Today he spends a lot of his time looking for rare examples, as well as studying the market for prestigious watches and collector's pieces.