Jaeger-LeCoultre

Hi all, I am aware that since its release in 2013, the MUT perpetual had an update at some point. This is where the rotor went from a steel and gold one to a full gold one. (Attached two photos from the net to show). Does anyone know when this happened an...  

I believe this first appeared when the black dial model came out. See .

Yes, you are right. The change came in 2016 when they release the black dial. Does anyone know if there were any other updates to the watch (for the same dial colour and material) apart from switching from the steel rotor to the gold one? BW, Chi Kai