ROLEX Oysterdate Precision wristwatch with so called roulette-date, Switzerland 4th quarter 1956, manual winding, reference 6694 (6494 in case-back), screwed down stainless steel case, dial with raised hour-indices patinated, gilded hands, date in black/red, calibre 1210, 17 jewels, screw-balance, Breguet balance- spring, diameter approx. 34 mm, neutral leather strap with Rolex buckle, overhaul recommended at buyer's expense, condition 2-3