Characterised by its thin and elegant case, the tresor line was first launched by omega in 1949 and housed the legendary 30mm calibre. More than half a century later, it continues to impress with one of todays most advanced mechanical movements. This model has a 40 mm stainless steel case, which is presented on a red leather strap. The domed red patterned dial includes a date window at 6 o'clock as well as hands and indexes in 18k white gold. Inside, this de ville tresor is powered by the omega co axial master chronometer calibre 8910 and is certified at the industrys highest standard of precision, chronometric performance and magnetic resistance. Calibre omega 8910 manual winding movement with co axial escapement. Certified master chronometer, approved by metas, resistant to magnetic fields reaching 15, 000 gauss. Free sprung balance with silicon balance spring. Rhodium plated finish with geneva waves in arabesque.