1956 Omega Jumbo Ref.2505 Honeycomb Dial

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Something you don't see very often - a jumbo Omega in one of the most popular case designs Ref.2505 combined with amazing guilloche "honeycomb" dial decorated with rose gold "coffin" markers. The movement inside is manual-winding Cal.266, a reliable successor of the famous Cal.30T2. All in all, this incredible watch will be a great "daily beater" and serious addition to any kind of collection. 

Payment via bank transfer is subject for a 5% discount! Contact us for details.

Professionally serviced in June 2018. Technical warranty: 1 year.


  • Stainless steel 3-body case with snap-on case back. Satin and high-polished finishing.
  • Professionally polished to factory specs
  • Overall excellent condition showing no oxidation on the backside
  • 38 mm (without crown) / 43 mm (lug-to-lug) / 18 mm (between lugs)
  • Original Omega signed steel crown.
  • Replacement plexiglass crystal


    • Manual-winding with small seconds hand
    • Cal.266 signed ‘Omega’.17 jewels, 18000 A/h and 43 hours of power-reserve. Incabloc shock protection. 
    • Serial number: 15127099
    • Excellent condition.
    • Professionally serviced in June 2018.


    • Untouched original "honeycomb" dial in white color
    • Printed black minutes track
    • Applied rose gold "coffin" shaped hour markers
    • Signed "Omega" at 12 o'clock.
    • Original golden hands in excellent condition

    Delivery set:

    • The watch with high quality generic leather strap + generic buckle
    • Our company’s warranty certificate, invoice and general terms and conditions.

    Collections: Omega, Watches

    Category: Omega

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    Sizing Product

    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.