Portofino Chronograph 39

The IW391407 is the silver-plated-dial Portofino Chronograph 39 variant paired with a blue alligator strap. IWC's official product page supports its 39 mm stainless steel case, calibre 79350 automatic chronograph movement, 44-hour reserve, 28,800 vph frequency, 3 bar water resistance, and 20 mm…

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