You can try, but if the crystal is domed instead of flat (appears domed to me in your photos) it won't work unless you cut relief cuts to adhere to the curvature and then it won't look good at all. However, if it is flat, it will work but good luck cutting a perfect circle as I had no luck trying that for my flat crystal and wound up ordering a 6 pack of them online.
I've seen ones that are very pliable plastic that have arms which slip through the watchband and then for lack of a better term snuggle down to the face and case-- I would supply a link here but i believe the site would not like it--so run an amazon search for Suunto display shields---which may work for your watch-- these are pretty much generic or at least provide an example of what i am attempting (very poorly) to describe....
My Omega Seamaster James Bond 50th Anniversary Edition is my every day wear. I have a Timex Ironman for when I run. Sent from my iPad using Tapatalk
A Strider that was made for Prometheus Design Werx. http://s183.photobucket.com/user/silverspurr/library/Knifes/Prometheus%20Design%20werx