ROLEX Datejust Oysterquartz Texano Beta21 Ref. 5100 Case - 18K Yellow Gold, 40mm (Tonneau Case, Not Oyster Case) Dial - Champagne Bezel - Fluted, 18K Yellow Gold Bracelet - 18K Yellow Gold, Special Design for This Model Function - Beta 21 Quartz Movement (First Quartz Movement by Rolex) Watch Only Condition - Used Like New (Extremely Rare, Limited Production of 1,000 Pieces - 850 in Yellow Gold, 150 in White Gold)