Sinn Watch U1 SDR Rubber 1010.040 Rubber Strap. U1 diving watches feature solely high quality materials, the casing is made of submarine steel, which makes timepieces resistant to high pressure, exposure to water and magnetic fields. A date window is positioned at the 3 o clock mark. Additional features include captive diver's bezel with minute ratcheting, crown at 4 o clock, luminous hands and markers and scratch resistant sapphire crystal glass with anti reflective coating.
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