Tristan’s operational series have fixed backrest height. Armrests come with fixed or 2D movable armrest options. The series feature permanent operator mechanism, along with synchronous mechanism alternative. Tristan, which stands out for its innovative style, was designed by Gerhard Reichert and Eckhard Hansen in 2000. Designed to meet the various needs of different work cultures, Tristan is a large family consisting of operational, manager, executive and visitor armchairs as well as meeting and seminar models. It gives a characteristic look to communal spaces in workplaces.

Seminar group comes with an optional writing tablet. Seminar chairs without writing tablets only come in polypropylene backrest. These series are designed without writing tablets for ensuring easy stacking of chairs. Series that have writing tablets have the upholstered backrest option. Writing tablet can be on either side of the chair. Since writing tablets are anti-panic, they fold and drop to the side of the chair in an emergency situation. As the writing tablets are movable, they can be removed after use, making it easy to stack the chairs. Seminar chairs come with a carrying trolley to ensure easy transport after stacking.