Meet the Great Barrier Reef Limited Edition IV, a 2,000-piece limited-edition based on the Aquis Date and inspired by the pioneering work of Reef Restoration Foundation. Behind its beautiful gradient blue dial is our Calibre 400 five-day automatic. Reef Restoration Foundation is an Australian non-profit working to combat the devastating effects of coral bleaching on the world's coral reefs. Healthy reefs are vital to our planet's health and it's a privilege to support the foundation's work. Insi...