Internal button component fell out of Vice’s Muze!

I was about to use my Vice and pressed the button when all of a sudden – it gave way, and now softly depressed with no end. I opened it up and out came a little button, presumably dismounted from it's board.

I have a deal experience with electronics and can probably fix it, but I cannot get the thing open. It appears to have a silicone seal, and it is likely threaded. I currently do not possess adjustable wrenches, but may have to get a couple to open it.

Has anyone had to open an Aneros Muze before? Any advice?

Source: http://www.reddit.com/r/aneros/comments/2ov930/internal_button_component_fell_out_of_vices_muze/