Rolex. A fine mid-size 18k pink gold automatic bracelet watch with date
Oyster Perpetual DateJust Ref.178245, Serial Z251417, made circa 2007
Cal.2235 self-winding movement, satin-pink dial with applied pink gold and black Roman numerals, pink-gold and black baton hands, centre seconds, aperture for the date under magnification window, sapphire crystal, Oyster case with screw-down reverse and twin-lock crown, smooth bezel, on fitted pink gold Ref.83165 Rolex Oyster President bracelet with concealed folding clasp. Accompanied by a Rolex presentation box, numbered and dated (06 Nov 07) Rolex warranty card, numbered sales tag, chronometer tag and relevant booklets. 
Diameter 31mm.