different model of Mille Miglia GTXL

[spino13]

i'm looking for mille Miglia GTXL from MR:
Mile Miglia Ultimate GT XL Chrono SS/Rubber/Grey-Asian 7750(28,800bph)
but the MR's price is 438$ and the Replica make is 328 $
CP01010 CHOPARD GRAN TURISMO GTXXL CHRONO RUBBER ASIAN 7750 GREY - ReplicaMake.com
MR said it's not the same model i'm not expert and i see no différence beteween the two models

Can someone explain the difference between these two models ?

thanks

 

[bclaud]

different factories and different movements (asian ETA Valgranes A07.111 vs asian ETA 7750)
correct text on caseback for expensive one.