It took me ages, to be specific 17 years, of hunting and observing the vintage JLC market to end up with my final catch.
The most mysterious and rare as hens teeth LeCoultre product, the caliber 476/2 bumper automatic Chronometre for the north American market.
Nico covered the watch before, but with a different dial layout, indeed for celebration of 125 years LeCoultre.
The case serial dates to 1956/57 which is logical as we know advertisings from 1957 without mentioning the 125th anniversary but movement serial indicates 1949 production [sic!].
Only the little 'golden, handwriten' book of produced movements can give a hint what really happend, but from the collected facts we can say that (J)LC produced a real Chronometer certified watch right before the magical year of 1958.
It would be nice to see other collectors sharing their caliber 476 'Master Mariner' Chronometers to have more data available.



I.