This classic wrist watch for Men from Steinhausen combines style and beauty in one. The TW-391 model is updated but carefully reproduced by hand from 185 Swiss parts just like the original. There’s no need of batteries nor yet of winding because it’s kinetically powered by body movement. The Steinhausen TW-391 has stainless steel case with diameter 1.5 in., weighs 1 lb. and it’s water resistant up to 50 meters.