Which movement is this?

[watchnerd]

Purchased an EXPII locally. I dropped the watch and the stem no longer engages (movement still ticks).

Any idea which movement this is?

http://imgur.com/Fb0lXaq

 

[rsh]

it is probably like a 3804
http://www.ofrei.com/page1119.html

 

[SSTEEL]

Could be a 3131 decorated 2836-2.

EDIT - Scratch that, just zoomed in, looks different.

 

[cwazy1]

as rsh said, its a DG3804 basically a GMT version of a typical 21j (2813)