Ferdinand Berthoud introduces a very special bronze FB1
After the introduction of the regulator version of FB1 marine chronometer by Ferdinand Berthoud at the 2018 SIHH, the brand came with another interpretation of this watch with a very special bronze case during Baselworld 2018. We've been seeing more and more bronze cases of the last few years, but Ferdinand Berthoud's take on it is quite extreme with a patina you will not see elsewhere.
