The Oyster Perpetual Day-Date 36 in 18 CT white gold with a Turquoise, diamond-set dial, fluted bezel and a President bracelet. Turquoise Dial Prized for thousands of years This dial features hour markers in 18 ct gold, set with 32 diamonds, and a Roman VI and IX in 18 CT gold, set with 24 diamonds. Only found in a few places on Earth, turquoise has been prized for thousands of years for its special hue. Rolex selects turquoise for the beauty of its structure and its characteristic, rare blue colour, because it marries perfectly with yellow and white gold. It is exclusively reserved for gold or platinum versions of the Day-Date 36.