Carrera 3647
The Carrera 3647 has a 45 minute register at "3" and powered by a Valjoux 92 movement housed in the same classic 1960's case used by the 2447. This reference was only made with 1st execution dial (long applied hour markers and plain steel hands) and was superseded by the 7753 with 30 minute register at "3". There were a variety of dial designs encompassing various scales on the outer track as well as plain silver and black but no contrasting dials. The lugs are 18mm wide and take the HEL end links with the early Gay Freres bracelet.