A free, two-pound bag of M&Ms (plain or peanut), shipped anywhere in the world, to the first person who can correctly identify this movement - - -

It is shown in Charles Rush's beautiful Transitional Chronograph, recently added to OnTheDash, but I have not been able to identify the movement. Note the unusual angle between the crown and the movement. In the above photograph, the imaginary line between castle wheel and balance wheel runs North / South, but the crown is at a strange angle (aimed Northwest).

What is this movement??

Thanks to Charles for the use of the Chronograph.

Jeff