Rolex, a lady's platinum 'Datejust' wristwatch

Rolex, a lady's platinum 'Datejust' wristwatch, the circular silvered dial chased with a repeating 'Rolex' pattern and diamond-set indicators, date aperture at 3 o'clock, to a plain bezel, automatic movement, to an integral platinum Jubilee bracelet and deployant clasp, signed dial and clasp, Swiss control marks, reference number 179166, case width 2.5cm