1956 Omega Ref.2900-1 Rare Black Dial

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Here is something most Omega collectors should appreciate - 34 mm stainless steel case with massive and beautiful lugs, classics of then "refreshed" Omega's design of the mid-50s. It boasts with extremely rare original black dial (with charming patina turning the colour into dark brown, original radium plots) and the successor of Cal.30T2 - antimagnetic gold-plated Cal.267. Truly attractive and very honest timepiece for a demanding Omega aficionado.

Technical warranty: 1 year.


  • Stainless steel 3-body case with snap-on case back. Satin and high-polished finishing.
  • Fine condition with strong geometry. Polished in the past. Shows various traces of use - scratches, minor dents. 
  • 34.5 mm (without crown) / 41 mm (lug-to-lug) / 18 mm (between lugs)
  • Original steel crown signed with Omega logo.
  • Replacement plexiglass crystal


    • Manual-winding with sweep seconds hand
    • Cal.267 (Cal.30T2 family) signed "Omega Swiss"
    • Gold-plated, 17 jewels, 18000 A/h and 43 hours of power-reserve. Incabloc shock protection.
    • Serial number: 15245132
    • Service history is unknown, however, the watch shows strong results: 230 deg. of amplitude, +6 seconds a day, 1 ms of beat error.


    • Untouched gilt black dial in good condition with minor ageing and over the surface turning into dark brown tone.
    • Some lume plots are missing
    • Signed "Omega" at 12 o'clock. Correctly signed "Swiss Made" at 6 o'clock. Raised arrow-shaped hour markers and raised golden Arabic numerals at quarters.
    • Original golden luminous hands in good condition. 

    Delivery set:

    • The watch with handmade calfskin leather strap and generic steel buckle
    • Suede leather watch travel case
    • Our company’s warranty certificate, invoice and general terms and conditions.

    Collections: Archive

    Category: Omega

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    Measuring a watch

    It is always crucial to understand the size of the watch, especially when it comes to vintage watches which are generally considered as too small in comparison with what watch industry offers today. For example, the original Patek Philippe Calatrava introduced in the 1930s was only 31 mm in diameter, while today's classic Calatrava is 39 mm. When you think about 8 mm, it doesn't seem to be a big difference, but believe it is.

    In our condition reports we normally disclose three most important parameters as follows: diameter without crown / lug-to-lug length / lug width. 

    Diameter without crown

    It is, so far, the most important measurement to understand the size of a regular round-shaped watch.It helps you to understand proportions and overall look of the watch. It is important to consider width of the bezel and color of the dial, because certain combinations may make the watch look bigger, while some other smaller. It is all very individual, however there is common understanding:

    Lug-to-lug width

    This parameter will help you to understand whether the watch is comfortable for wearing. You should compare lug-to-lug width with the width of your wrist, and if lug-to-lug width is smaller or equal, then this watch shall be comfortable.

    Lug width

    This measurement is defining what size of strap you need for the particular watch. Depending on era and manufacturer you can find watches with lug width between 14 mm and 24 mm. Most common sizes are 18 mm and 20 mm.