Rolex Day Date Qaboos Dial 1803A special order for the SultanThis is a very rare and unusual case back that was a special order piece for former Sultan of Oman Qaboos Bin Said al Said. The dial features his signature in dark red on the lower half and the caseback bears the engraving KR for famed Muscat retailer Khimji Ramdas, who ordered the watch on the Sultans behalf. The fact that this watch was a special order is further supported bay the fact that the full serial number is