Have you considered the Yotank? I believe the front is secured to the back by being screwed or Allen-keyed so technically, the case should allow you with some flexibility in terms of size.
I am prepared to consider reasonable offers for the amp alone. So if you would like to make an offer please PM me.
Also, for shipping, I will charge a flat rate of 15 USD no matter where I ship it. Insured and tracked so far...
There are some beautiful watches in this thread. I'm planning to buy my first 'proper' non-fashion watch for my graduation soon, but I haven't decided exactly which one I am going to go for. Before I choose I thought I would do some...