Tissit Tradition 5.5 Ladie's Watch with Bracelet Band with Roman Numerals and Indexes. A touch of retro and some vintage details, all served up in a curved 1950s-style case, combined to create the Tissot Tradition. The new models have a very thin case that is less than 5.5mm . Water Resistance: Water resistance up to a Pressure of 3 Bar( 30M/ 100FT) Strap/Chain Reference: T605042678