Rolex Oyster Perpetual 2764

ROLEX - AN OYSTER PERPETUAL 'BUBBLE-BACK' SMALL SECOND STEEL AUTOMATIC WRISTWATCH, ref 2764, circa 1940s, the circular silvered dial with Roman numerals, black printed outer minute track, steel hands, sub seconds dial to 6 o'clock, polished case with signed screw down crown, fitted to a steel bracelet with folding clasp, case internal signed and numbered 2764, the signed automatic movement numbered N59454, serial number 445236, case size 30mm.