hmm, 8-day power reserve... did they borrow the movement from the portuguese? why would you sell a SS Daytona:facepalm: its like the cornerstone to any sport watch collection.
I love IWC and that is a gorgeous watch! Tough choice on trading the Rolex.
If you think you may get more enjoyment from the IWC it might not be a bad move.
Downgrade your pream and keep both watches. IWC for more formal wear (very pretty) and the Daytona for more sporty occasions.
BTW - does your Daytona have the original Zenith movement in it, or the replacement Rolex movement (in 2000)? If it is the Zenith "El Primero" you definitely might want to consider holding that one.