amanico[JLC Moderator]
404070
Jaeger Lecoultre Master Ultra Thin Perpetual Calendar White Gold Guilloché Blue Enamel Dial. ( 2019 )
Among the guilloché blue enamel dials from 2019, my favorite is the Gyrotourbillon Five, of course, but just after, this MUT Perpetual Calendar.
Why? The very nicely balanced dial with the year windows perfectly integrated in the months sub dial.

To be compared with another star, the Steel Black version.

Without forgetting that the movement has an increased power reserve of approximatively 50%, with 70 hours.
Yes, that was a very good one!
Best,
Nicolas