For Only Watch 2023, TUDOR breaks its own rules, deviating from stainless steel and titanium by releasing an entirely new 18K yellow gold case that heralds the return of the legendary “Big Block” Chronograph, the first Tudor automatic chronograph, released in 1976.

The unique Prince Chronograph One continues this spirit with another incredible first; a brand-new Manufacture Chronograph Calibre entirely developed by Tudor. The prototype of this Calibre, movement “Number 0” in the development process, is found inside the Tudor Prince Chronograph One.

The new Calibre, MT59XX, features column-wheel construction and meets all Tudor Manufacture Calibre performance standards.