Rolex: An unusual stainless steel and pink gold anti-magnetic chronograph wristwatch in circular case with unusual shaped pink gold lugs, pink gilt dial with Arabic numerals, outer tachymetric scale, subsidiary dials for runnings seconds and elapsed minutes, sweep centre seconds operated by two square buttons in the band, the snap on back with makers mark numbered 63628 4100, the signed movement jewelled to the centre, with alloy balance