The ground-breaking M1 Series offers more performance, more colors and more legendary reliability than anything in its class. The Momentum M1 is a powerful and versatile new sport watch from St. Moritz Watch Corporation, the leader in specialty dive and watersport watches. Made of tough 316L stainless steel, with unidirectional ratchet bezels and waterproof screw-down crowns. All dials with Blackout Superluminous, for amazing legibilty, even in the dary. A unique combination of quality, function and style.