What I don't know is that quick.... Bought a preowned Zenith El Primero several years ago because Daytona was unaffordable to me. While the Zenith is still one of my best loved chronograph , I just can't get away from the Daytona. And my resistance is completely futile after watching a video, by comparing both warches, concluding the premium in Daytona was well justified.......
The rest of stories is quite trivial, researching, contacting a seller (who is a very nice guy with owns a shop full of vintage rolexes, and surprisingly within the walking distance from my home flat), making sure everythings ok. And here it comes:
Daytona 16523 black dial, A series, with original box and papers

I cannot ask for a better condition of the same model