Tudor Black Bay P01 /Root/Start/Rolex/Yachtmaster the chronograph calibre 9900 with

the chronograph calibre 9900 with Co-Axial technology does the work

a unidirectional rotating ceramic bezel with dive scale

the model is perfectly suited for everyday wear

protected by sapphire crystal

The blue dial with applied indices and luminous hands ensures excellent legibility — day and night — and lends the watch a fresh yet refined appearance

Tudor Black Bay P01 /Root/Start/Rolex/Yachtmaster the chronograph calibre 9900 withTudor Black Bay P01 (Reference M70150 0001) The P01 traces its origins to a prototype from the 1960s that Tudor developed for the U. S. Navy and that never went into series production. Reference M70150 0001 draws on that design including the unusual lug construction that locks the bezel in place. The stainless steel case measures 42 mm and has a water resistance of 200 meters. The black dial features central seconds, a date display, and luminous hands