OMEGA (Constellation Chronometer / Steel) circa 1970 A great classic from the manufacture in a tonneau-shaped version from the 1970s with an integrated 'jubilee' style bracelet. Steel case with screw back with the famous medallion representing an observatory. Brushed steel dial with large baton indexes, black hands and fluted steel bezel. Double date at 3 o'clock (day and date). Movement: Mechanical automatic winding caliber OMEGA / 1001 (20 jewels). Certified Swiss chronometer. Diam. 36mm. Condition: Good condition (Omega case).