Rolex Datejust 31, Rose Gold and Steel Slate Grey Roman Dial 31MM Watch 178241(PRE-OWNED)DESCRIPTION Diminutive in size but not in design, 178275 is the perfect addition to your regular ensemble. The 178275 has a round rose gold case that is 31mm in diameter with a solid case back, a screw down crown, a scratch resistant sapphire crystal and a fluted rose gold bezel. It comes with a mother of pearl dial with Roman numeral hour markers and a date window at 3 o clock. The 178275 is powered by the self winding 2235 caliber with date