Rolex Day-Date 36 mm in yellow gold, fluted bezel, green dial and leather strap. Posted on May 2, 2013 by Kiefer Fine Jewelers Rolex is offering new versions of the Day-Date with luxurious colourful leather straps and matching dials. Presented in 18 ct yellow, white or Everose gold, these models add a novel touch to Rolex’s most prestigious calendar model.