Well, I finally made a decision this weekend and ordered the Archimede Trekking Titanium online on Archimede's website. Now comes the waiting part... but...
Searching the web for other information on the Archimede trekking I could have missed this morning, I've found on timezone a couple of post about people complaining that the Archimede Trekking they received was different from the one shown on their website.
Found on timezone: "I was also a bit disappointed to find that the style of the watch was a little different than the pic on the manufacturer's website (the one I received had different lugs and a crown guard)."
This is not good news and I must admit that I am a bit afraid to find out that the watch I will receive won't be the one I ordered.