The Milgauss was introduced in 1956. It was designed for use in areas of high electromagnetic fields which can be found in laboratories. The European Organization for Nuclear Research (CERN), the world’s pre-eminent particle physics laboratory, was one of the first scientific labs in the 1950s to confirm the Milgauss could resist magnetic fields up to 1,000 gauss. The reference 1019 was in production from 1966 to 1990, the model was only available in stainless steel. Its name is derived from the Greek "Mil" for thousand and "Gauss," the unit to measure magnetism. A normal watch movement can withstand to 70-90 Gauss whereas the Milgauss keeps its incredible precision in a magnetic field up to 1000 Gauss. Rolex had made some of these Milgauss reference 1019s for CERN and these feature a non-luminous dial and hands, like the current example.
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The case has scratches and nicks. The case has been polished. The lugs at 5 and 11 o'clock have nicks to their ends. The numbers are visible between the lugs. The backs and edges of the lugs show signs of wear and have many scratches. The back of the lug at 11 o'clock has numbers etched into it. The case back has scratches and shows signs of being opened. The case back has been lightly polished. The inside of the case back is marked '1019' and also 'II.70' indicating its production in the second quarter of 1970. The inside of the case back has watchmaker's marks. The bezel has scratches and small nicks and especially noticeable scratches near 10 o'clock. The dial and hands appear to be original. The dial, hands, and hour markers have developed patina. The minute hand has a hole in the black luminous area. The end links are marked '55' and the bracelet '6251H.' The bracelet is also marked '4, 70' indicating its production in the fourth quarter of 1970. The bracelet has scratches, stretch, and appears to have been polished. The movement is in working order at the time of cataloging, consistent with the age of the watch. The movement has not been tested for accuracy. A service is recommended given the age of the watch.