Rolex Oysterdate Precision 6694 with the caliber 1225 movement. It beats at 21,600 bph. The watch diameter is without crown – 34mm/with crown 38mm. This particular one has the black dial with golden markers and hands. It was fully serviced, polished and cleaned. А good entry level Rolex from the late 70s/early 80s – and a good starting point for anyone willing to go Rolex all the way.