The St. Moritz M1 Series dive watch offers more performance and more legendary reliability than anything in its class. M1 Stainless dive watches feature a solid 316L stainless steel case, stainless steel bracelet, unidirectional ratcheting bezel and screw-down crown, heat-tempered mineral crystal and Superluminous dial and hands for amazing legibility, even in the dark. Rated to 660 feet (200m). Available in mens and womens sizes and 9 popular colors, M1 Stainless dive watches are a unique combination of quality, function and style.