(TrendHunter.com) The Bell and Ross BR X3 Tourbillon Micro Rotor showcases a transparent mechanical design by placing a flying tourbillon and a compact micro rotor inside a square case built from steel and sapphire…(TrendHunter.com) The Bell and Ross BR X3 Tourbillon Micro Rotor showcases a transparent mechanical design by placing a flying tourbillon and a compact micro rotor inside a square case built from steel and sapphire…
