The polished blue bi-directional rotating bezel is compelete that has a bright orange GMT scale and helium-escape valve at 10 o'clock on the situation. Its outstanding brilliant blue glow is richer and more time-lasting in comparison with the environmentally friendly glow of Super-LumiNova. OMEGA has unrivalled expertise in using ceramics, https://www.watchesworld.com/top-10-dive-watches/