Audemars Piguet Royal Oak GMT Tourbilon

Movement: mechanical, self-winding.
Size: 42 by 51 mm, height 16,5 mm.
Functions: hours, minutes, day of the week, date, month, GMT function.
Case: stainless steel
Mineral-crystal glass on top and bottom.
8 screws on the welt
Dial: white, guilloche.
Strap / Bracelet: Genuine Leather strap band with patented clasp AP.
No docs and box