Reference220.53.43.22.02.001BrandOmegaCollectionSeamasterDial Size43 MMDial ShapeRoundCase MaterialSednaa??? GoldDiamondsWithout DiamondsStrap BraceletAlligator Style Nona??Grained Calf Leather StrapGenderMenMovementAutomaticGlassDomed scratcha??resistant sapphire crystal with antia??reflective treatment on both sidesWater Resistance15 BarBrand Warranty5 YearsDESCRIPTIONThis 43 mm Worldtimer model includes a polished case in 18K Sednaa??? gold, which is integrated with the blue leather strap via a solid polished gold link. 18K Sednaa??? gold is also used for the hands and indexes.The exterior section of the opaline silvery dial includes vertical teak stripes and a circle of global destinations printed in red (GMT), blue (+1h in summer) and Sednaa??? gold colour (places without daylight savings).The centre of the dial contains a 24-hour glass ring, with opaline silvery colour to indicate daytime and dark blue to indicate night. The vision of Earth is created on a grade 5 titanium plate. This has been laser-ablated to create the blue ocean, leaving a relief of the continents. The contrasting colours of the Eartha??s surface are obtained naturally by the lasera??s chemical reaction.Inside, the Worldtimer is driven by the Master Chronometer Calibre 8939