Model/Reference: 9850 T EVO 3-1 Material: Grey gold or platinum Dial: Guilloché Sunburst in silver Strap: Alligator skin Movement: Handwound mechanical movement Complication: Indication of the hours and minutes, 24-hour power reserve. Perpetual calendar with indication of the days, months, years and retrograde date. Tourbillon evolving on three axes.