Richard Mille unveiled its first extra thin tonneau wristwatch at SIHH 2016. The Richard Mille RM67-01 Automatic extra flat, with a new in house movement. Leading up to the days of SIHH 2016, Richard Mille has announced that they would be unveiling the RM 67-01 Automatic Extra Flat. The RM67-01 will come in the now familiar…