The Tudor Prince Chronograph One 9420/801 was produced as a unique timepiece for the 2023 Only Watch charity auction. It features a yellow gold case containing a self-winding prototype movement with date and chronograph functions, designated as caliber MT59XX.
Movement Type
Automatic Chronograph
Caliber
MT59XXReserve
70
Frequency
28800
Hands
Center Seconds
Shape
Round
Glass
Sapphire
Diameter
42.00 mm
Dial Color
Black