MTF[PuristS]
13383
Just like the previous heritage L.U.C watches
Porcelain-style means it is not grand feu enamel fired at 800 degrees C.
Like both the L.U.C 1963 Chronometer and the L.U.C 150 The Tribute.
Both those watches had no date because they used the huge hand wind pocket watch movement in the style that would be familiar to the founder L.U. Chopard.
Modern automatic L.U.C movements have date disc at homologation with the Geneva Seal inspection. Those movements are certified and only Geneva Sealed movements are used in the L.U.C Heritage Grand Cru watches.

L.U.C 1963 Chronometer

LU.C 150 The Tribute
Regards,
MTF