Here is a rare Omega Constellation Automatic Calendar watch. This watch is one of four, 1st generation "Constellation Calendar" model, having a total quantity of only 25,000 pieces manufactured with a 24 jewels Omega caliber 504 movement. It has been fully serviced and running accurately. The movement serial number is 16889287, dating this watch to 1958.  Attractive factory original finish dial in great condition.  Original signed crown. Brand new crystal--- slightly used original vintage 18mm genuine leather strap (not original Omega). The unpolished solid stainless steel original case measures 35mm, excluding the crown by 44mm lug tip to lug tip. Case model 2943-5 SC. The calendar feature is working accurately. The wrist size in the photo is 6 inches.


  • Circa: 1958

    Model: Constellation

    Caliber: 504

    Movement serial #: 16889287

    Jewel count: 24 jewels

    Movement Type: automatic wind

    Case model: 2943-5 SC

    Case material: Solid stainless steel with gold medallion on back

    Case gasket: O-Ring rubber gasket 

    Crystal: Acrylic new crystal

    Crown: Signed

    Case Diameter excluding crown: 35mm

    Case length lug tip to lug tip: 44mm

    Dial: Factory original finish

    Hand type: Dauphine (original)

    Strap material: genuine leather

    Strap width between lugs: 18mm

    Wrist size in photo: 6 inches