master 38The 3811 combination is apparently one of the rarest that can be found and the number 11 is considered to be a ‘master number’, which cannot be broken down any furtherOMEGA Speedmaster 38; OMEGA Art Deco; OMEGA Chronostop; OMEGA Constellation; OMEGA De Ville; OMEGA De Ville Preste; OMEGA Dynamic; OMEGA Genève; OMEGA