Audemars Piguet Royal Oak”Jumbo “ 6005BA slate Oman Khanjar DialThe Royal Oak Square is something slightly off the beaten path, especially in a market with a hyper focus on the original classic RO. The reference 6005BA, notably the first Royal Oak to incorporate a quartz movement, was made for a brief period from 1980 to 1985, making it rare. This watch is further distinguished by the presence of a Khanjar dagger on its Petite Tapisserie dial, signifying it as a special order by the Sultan of Oman, known to be one