This is a rare 26mm Lady Datejust Reference 179313 with gold tone Mother of Pearl diamond dial. This model features a factory set diamond fluted bezel. The dial is mother of pearl with diamond factory set hour markers. The watch is powered by an in house Rolex automatic movement. 

The watch is mounted on a steel and 18K gold oyster bracelet with flip lock closure. 

The watch is in excellent condition. It has been serviced and is running well. It will come with a one year warranty.