The Caliber in the MC Memovox is not the Cal 916, but the 918.
The 916 is the grandfather of the 918.
Here's another link where all is explained.
The bigger obvious difference is the quick set of the date, featuring in the 956, which is not the case with the 918.
Best,
Nicolas
You have to move the hands between 10 PM and 3 AM to set the Date...
It is a somewhat ...Fastidious.
With the 956, is it as easy as you described it.
Best,
Nicolas