...I have never seen one. Just pored over a ton of Antiquorum listings, our own Archive & Serial # Project and nada.
But if it did exist...it would definitely have a cal. 1560.
P.S. As I believe 1016 & 6610 dials are interchangeable, it will be hard to verify that the watch was all original even if you found an OCC dial in a 1016 case. Unless the Super Gurus (Stefano, Marcello, Philipp, Gatsby, Eric Ku) have some thoughts on acceptable fonts for any possible crossover 6610/1016 dials...