Mineral
510
the RO Blue is different from 5711 blue
I have viewed and inspected the RO blue dial, the blue color is very different from the 5711 blue. Instead theRO black dial is more mtaching the 5711 dark blue dial. You will notice the difference when you handle them personally.
I know some will like the RO blue as it is original RO colour 
congrats
By: Hororgasm : September 23rd, 2010-15:36
very handsome pair. 15300 is gonna be a classic, if not already. if twinned with the 5711, wouldnt the blue dial on the 15300 be more "appropriate"? i personally like the white dial on the 15300 best, though black seems to be more popular.