Diesel-powered movement: Automatic Calibre 2236 movement with 31 jewels operating at 28800 vph (5Hz). Power reserve around 55 hours. Analog dial type in olive green color featuring Roman numeral hour markers and gold-tone hands. Fixed bezel crafted from 18kt yellow gold on a stainless steel watch case. Ladies' model with round 31 mm case size, solid case back, and jubilee bracelet made of both stainless steel and 18kt yellow gold. Includes date display at the three o'clock position. Water resistant up to 100 meters (approx. 330 feet). Functions include hour, minute, second hands, and date indicator.
![Rolex Datejust 31 Black Mother of Pearl Diamond Ladies 18kt Yellow Gold Oyster Watch, Ref. No: [Article Number]](https://cdn.lepodium.net/images/000/091/91588-2.jpg)
