From 1961, according to a brand press release, 90% of extra-flat chronometers with official reports "for particularly impressive results" were made by Marvin.
These technical innovations were also to be found in the "Victory Chronometer" which was launched with a simple, automatic calendar.
Today the Manufacture is still considered exemplary in the rigour and precision of its mechanical movements. The brand also supplies a number of Swiss watchmaking manufactures such as Vulcain, Revue-Thommen, Zenith or Chronoswiss.