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This is a very rare first generation Omega Seamaster Chronograph watch.  That's right, the first Omega Chronograph Seamaster case model.  The dial is nicely aged and is factory original.  The case is made of solid stainless steel.  The bezel has a couple visible marks which are not cracks FYI.  Case model is 2907-3 and measures 34mm across excluding the crown by 40.7mm lug tip to lug tip.  The manual wind chronograph movement is the legendary caliber 321 which is also used in the first generation Speedmaster watch.  The movement has been professionally serviced and running accurately.  This watch is a 3 registers chronograph watch.  To activate the chronograph, simply push and release the top button and the center long second hand will begin to sweep.  Every 60 second rotation, the right register which is the 30 minute timer will jump one dash.  The bottom register is the 12 hour register which will slowly move from one hour to the next as the chronograph is at work.  The actual second hand of the watch is the left register which will continue to run whether the chronograph is activated or not.  The crown is original and signed.  Brand new case back gasket.  Brand new crystal.  The watch is ready for daily wear and will come with a high quality 18mm matching new genuine leather strap.  Wrist size in photo is 6 inches.


  • Circa: 1958

    Model: Seamaster Chronograph

    Caliber: 321

    Movement serial #: 16648393

    Jewel count: 17 jewels

    Movement type: Manual wind Chronograph

    Case model: 2907

    Case material: Solid stainless steel 

    Case gasket: O-ring rubber gasket 

    Crystal: New Acyrlic crystal

    Crown: Signed

    Case Diameter excluding crown: 34mm

    Case lenght lug tip to lug tip: 40.7mm

    Dial: Factory original finish

    Hand type: Alpha (original)

    Strap material: Genuine croco grain leather strap

    Strap width inbetween lugs: 18mm

    Wrist size in photo: 6 inches

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