I think that the first issue of a correct Daytona rep is the movement
It would be necessary to generate a movement that has the same thickness and sub Dials hands correct position of zenith caliber (for a copy of 16520) or rolex caliber (for a 116520 copy)
Is possible that the chinese manufacturers produce these movements? NO because FOR building a complex movement only for a type of watch is necessary to spend and THE work is not rewarded by a sufficient gain
In my idea, today is possible a correct Daytona realized using a v7750 @ 6 without rotor and inverter.
The thickness allows a proper case. Then is necessary to produce an excellent dial, good quality case, hands etc. .. as the old MBK set for Zenith copy Daytona (or as Phong....)
Is possible that the Chinese manufacturers produce it?
NO because they produce and sell very well millions of incorrect daytonas, steel. Two tone, gold, mother of pearl, diamonds, no diamonds ... etc. ..
They have a great business , why spend on a new project ?
Business is business ... ....
PS I have a suspect. Chinese have other movement, non only eta, v7750 and venus7seagull. I have seen a daytona vintage whit GEN Valjoux 72 in the site of Hompo. Hig price. Gen Valjoux ? Or a mysterious copy ?? Is it a stupid suspect ??