not a Master minute repeater but a Master Grande Tradition minute repeater.
The case is essentially the big difference here as its powered by cal947 which is the caliber of choice by JLC.
The MGT case is much smoother and softer,the bezel is rounder,whereas the MMr case is more sculpted.
The material is called Ti-Van which is a league of titanium and vanadium.A big striking feature is the gold hands and applied numerals and markers,which in my opinion creates a nice contrast with the coldness of the case and plates.
The dial aperture is a big bigger than on the MMR and shows the gongs even better.
In terms of sounds,definitely its a loud one like on the MMR and a pleasure to operate.
For me its a superb watch,a dream one really,and considering that the MMR is no longer available this is the repeater to have.
The Ti based case makes it comfortable to wear.
I think that you should go for it ,no brainer here ......lucky you..
Yours,Mo