Checked on all functions and works perfectly
Stainless steel case-back with golden observatory medallion
Original Omega signed acrylic crystal
Original Omega decagonal crown
Original Omega signed caliber 561 automatic chronometer movement
First appearing in 1952, the Constellation was designed to be Omega’s main watch. This was the brand’s first mass-produced chronometer grade wristwatch and the brainchild of designer René Bannwart. The Constellation was originally called the ‘Globemaster’ in the USA, though it was dropped in 1956 as Douglas Aircraft, manufacturers of the huge transport planes of the same name, held the trademark on the name.