Hello everyone- Looking to learn more about the 2447D. I am familiar with 2 types of 2447D (that are not gold plated), shown at OTD http//www.onthedash.com/Guide/_Chronographs/63.Carrera/a.Manual_(1960s)/Carrera_12/c.Reference_2447D_Decimal/ A few questions 1. Were blue decimal tracks always 1st …