afaik the lower price models use eta movements, the more expensive models are in house. i believe the line is around $10k where you get pan guts. the in house movements are generally regarded as being good, but not as good as others (rolex, omega, etc). they were originally made for the italian navy, so they have roots in being a 'tool watch' and have enjoyed a resurgence as fashion watches. i think they're absolutely stunning, but you're definitely paying more for flash than substance. the other issue is serviceability - you hear horror stories about them taking several months to come back from Guiseppe.
for my $ i'd go metal bracelet and exhibition case. i love the design / finish on their bracelets. if you really wanna go big they do them in titanium. all the size and 1/2 the weight.