Hublot 471.OX.7128.RX Big Bang Unico GMT 45mm Mens Watch. 18kt King (rose) gold case, satin/brushed finished with polished beveled corners. 18kt King gold bezel, satin/brushed finished with polished beveled corners & secured by 6 "H" style titanium screws. Blue composite resin lower bezel. 18kt King gold crown with black rubber around the crown for enhanced grip. Sapphire crystal transparent dial. Applied brushed finished "Applique" style Arabic Numeral & index hour markers with luminous fill. Blue dial flange with minute/seconds track. Bold brushed finished minute & hour hands with luminous filled top & skeletonized bottoms. Blue tipped central seconds hand. GMT Timezone Function.