Model/Reference: 8888 AETERNITAS MEGA 4 Material: Grey gold or platinum. Dial: Guilloché Sunburst in silver. Strap: Alligator skin. Movement: Automatic. Complication: Indication of the hours and minutes, automatic 1-minute tourbillon.Three time zones. 24-hour indicator. Secular calendar (day, month, date, phases of the moon) regulated over 999 years. Retrograde date. 8-day power reserve.