Rolex: An early diver s wristwatch Oyster Perpetual Submariner model 5508, 1962 from serial number on papers, signed Rolex calibre 1530 automatic movement numbered 99710, signed round black dial with 100m = 330ft, with applied lume plots, baton and triangle at 12, outer seconds track also in lume, lume-filled Mercedes hands, centre seconds hand with lume plot, lacking bezel, screw-down crown with coronet, no crown guards, with 5508 and 11.62 to the caseback interior, on a generic stainless steel bracelet strap, with papers, no box (Case: 38mm excluding crown) This watch belonged to Merchant Navy seaman Ronald Leask. He purchased the watch during the maiden voyage of the MV Highland. He was wearing the watch on another voyage during which the ship, the MV Fernmoor, sank in the South China Sea. Copies of his log books accompany the watch, not the originals. See lyonandturnbull.com for the full article.