1977 Audemars Piguet Royal Oak II 18k Yellow Gold Grey Dial 8638BAAn absolute true gem! A fantastic condition 1977 Audemars Piguet Royal Oak II Automatic in 18k yellow gold reference 8638BA with a perfect grey dial with matching hands. The Audemars Piguet Royal Oak II Automatic, reference 8638BA, is a rare and refined expression of the iconic Royal Oak design, presented in a compact 29mm case crafted entirely from 18k yellow gold. This particular example stands out with its perfect grey tapisserie dial, elegantly