The 20th century, 20's, Rolex's fully developed only the first waterproof watch. In 1926, Rolex waterproof sheet formally registered. Rolex watch design style has always been the spirit of "solemn, practical, no significant Vanity Fair," loved by all walks of life the first HKSAR Chief Executive Tung Chee-hwa, long-term wear is also a dignified Rolex steel table. Rolex submariner is the best representative works.