Built on the chassis of the watch that made history with the same brushed stainless steel case and polished crown, Steinhausen merely added a window a few years later. The transformation was so great that Steinhausen decided to name it the Voyager. The small window in the face allowed the wearer to peer into a world where a 185 tiny precision parts beat as one. 185 parts assembled entirely by hand. A claim that very few watch companies can make : The Steinhausen TW-591-G Voyager features no batteries and no manual winding. Only the kinetic movement of your body keeps the 35 jeweled engine moving on this beast. The most elite Swiss names in automatic movement making, allow for an accuracy rating of +25/-27 seconds per day. The Steinhausen movement has been fine tuned for a rating of +5/-7 seconds, making it one of the most accurate in the world : Enameled ivory face with black Roman numerals displays two calendar apertures with the week and month and a numerical flip dial displays the day of the month. The Steinhausen TW-591-G water resistant to 50 meters.