cryo wrote:
I believe Breitling Caliber refers to the newest, entirely in-house movements, like B01 and its derivates.
If I'm not mistaking, Navitimer Fighters is a B13, based on a Valjoux 7750, and therefore shouldn't fall under "Breitling Calibers". The appropriate place would be under "Chronographs".
Your belief is correct.
It is not a Breitling Caliber movement.
The first Navitimer to be equipped with Breitling Caliber movement was the Navitimer 01 Limitd Edition in 2010 to be followed by the standard Navitimer 01 a few months later.