Sinn Watch U2 SDR - EZM 5. 1020.040 Vintage Cowhide Brown. For those that want no limits to their diving expeditions, this Sinn U2 SDR EZM 5 watch comes fully equipped for the ocean with a black coated captive diving bezel, German Submarine steel case and an impressive water resistance of 2,000 metres. Measuring to 44mm in diameter, the case of this Sinn U2 watch is crafted from genuine German Submarine Steel, a material known for being extremely resistant to sea water and fitted with the highest levels of non-magnetic properties, keeping the automatic movement within protected. The case is also fitted with a captive diver’s bezel which has been treated using the brand’s famous TEGIMENT technology. This innovation ensures that the surface has a significantly greater level of protection against scratches. The black hard coated captive diving bezel found on this Sinn U2 SDR EZM 5 watch is renowned for its capability on underwater adventures. It’s minute ratcheting and luminous key markers ensures easy use with one hand while the unidirectional functionality and 60 minute scale guarantee it will measure the duration of a dive accurately. Ensuring easy readability when under the water, this Sinn U2 SDR EZM 5 watch is presented with a matte black dial decorated with hands and indices coated in luminescent colour and housed beneath scratch resistant sapphire crystal glass with anti-reflective coating on both sides. The hour, minute, seconds, date and second time zone function are powered the ETA 2893-2 automatic movement, a Swiss calibre which promises 28,800 semi-oscillations per hour and a power reserve of 38 hours. To complete the look of this Sinn U2 SDR EZM 5 watch, a vintage brown leather strap is added alongside a classic steel pin buckle.