Just a tip for anyone who has the Zelos Titanium Hammerhead (not sure if it applies to the Steel version) -
1) The fitting of the bracelet to the case is VERY tight. I spent 2 hours trying to figure out what angle to put, why cannot go in, basically scratched up the back of the lugs and light parts of the back of the case, gave up and contacted Elshan - must PRESS the spring bar downwards into the case until it snaps. (I think it's flexing a little, which is why I basically destroyed the spring bar that came with it, had to take one out from another watch).
2) If you end up destroying the spring bar like me, use a thin version - which seems to suggest that there is really some flex. The last of the 2 hours I was trying it out with a normal size spring bar and couldn't get it to snap.
I'm going to stock up on a number of 22mm thin bars just for the occasion when I switch to a strap on this watch. Still happy with it, now it's clearly mine with certain marks, but I was planning to keep it anyways. My favourite piece from Zelos so far.