The Rolex Datejust 31 reference 178274 is a classic ladies' timepiece combining the robustness of Oystersteel with the luxurious elegance of 18k white gold, a combination known as White Rolesor. Its 31mm case is topped by Rolex's signature fluted bezel in white gold. Inside beats the Caliber 2235, a self-winding mechanical chronometer-certified movement, ensuring precision and offering a power reserve of approximately 48 hours. This model was available with a variety of dials, including black, silver, pink, and mother-of-pearl, often adorned with diamond hour markers. It is water-resistant to 100 meters and was offered with either a Jubilee or Oyster steel bracelet. This reference is now discontinued.