Is the DAY-DATE "up-to-date" ???

[black_hole]

Dear friends,

I wonder why the Day-Date does not have the new Parachrome spring ???

Would you feel concerned about this ? Does this compromise the magnetic behaviour of the watch ?

Has there been evolutions (updates) of the movement in the last years ?

Finally I wonder somthing. If I buy a Day-Date today and if the parachrome spring is introduced in the day-date line in the forthcoming years, will it be possible to have it on my watch later ?

THANKS !!!

Best regards.