A perfect addition to the Patek Philippe Aquanaut line is the new Aquanaut Chronograph ref. 5968A-001 just released at Baselworld 2018. Endowed with the calibre CH 28-520 C an automatic  movement with flyback chronograph, Patek gives the Aquanaut an edgier look and feel. The already sporty model just became bolder and sportier with a stainless steel case measuring 42.2 mm in diameter and a thickness of 11.9 mm and equipped with a black rubber strap or a bright orange rubber strap —sold separately.