I'm thinking more in the way of value for money weighed against poor replication. I wouldn't say a 16610 as the reps are pretty damn good with a bit of modding. Now Speedy Moons in the other hand...
So now I'm going to revise my answer - it would be a toss up between a 2254.50 and a Moonwatch sapphire.
The PAM reps are so good at the moment I'd have a hard time justifying buying a rep.