Omega Constellation solid stainless steel case . Case measures 34.3 mm x 42.6 mm lug to lug with screw down, Observatory back . Dial is in two tone silver"Pie-Pan" style and in mint condition!. Movement is a caliber 564 with 24 jewels, just serviced and running perfect. Comes with new black strap with Omega logo buckle in stainless steel.