Pre-owned/unworn Tissot Heritage Porto Mechanical ref T128.505.16.012.00 is a heritage collection watch inspired by a timepiece from the 1910s.  It has a striking tonneau-shaped case with a domed profile and a dial decorated with swirling Breguet-style hour markers.  The case is dressed in versatile 316L stainless steel and features a domed sapphire crystal with AR coating, a 31.1mm measurement, and 10.5mm thickness.  The Alligator-style grained cowhide leather strap features a butterfly clasp and attaches to the case with striking wire lugs.  This vintage-inspired Tissot also sports a reliable Swiss mechanical movement with a convenient 42-hour power reserve.