Sinn 903 st b e bracelet the 903 model from the beautiful instrument chronographs collection awakens traditional design characteristics found within all of the brands thoroughbred pieces the stunning colour palette of deep blues and ivory creams culminate n elegant and vintage infused style the sinn 903 st b e is purposeful to those who adore timepieces with performing analogue calculations the dark blue dial is the perfect companion for the ivory embellished indices and hands which have bee