Rolex, Oyster Perpetual Datejust, ref. 6917, a lady's 18 carat gold bracelet wristwatch, no. 5091988, circa 1978, automatic movement, 28 jewels, adjusted to 5 positions and temperature, cal. 2030, no. 50831, white dial, applied Roman numerals, baton hands, centre seconds hand, date aperture at 3 o'clock, fluted bezel, screw down back, case, dial and movement signed , on a Rolex President 18 carat gold bracelet with fold over clasp, accompanied by a Rolex Oyster Rivet bracelet with fold over clasp, diameter 25mm