The IW391405 is the green-dial Portofino Chronograph 39 in stainless steel, paired with a green alligator strap. IWC's official product-page evidence lists the 39 mm case, calibre 79350 automatic chronograph movement, 44-hour reserve, 28,800 vph frequency, 3 bar water resistance, and 20 mm strap…
Open in The Dial Atlas