1952 Omega Jumbo Ref.2505-13

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Original, fascinating, and still affordable timepiece made by Omega in ca.1952. It features 38 mm all stainless steel case, creamy-white dial with beautiful mirror-like Arabic numerals. It is powered with Cal.266 - a reliable successor of the famous Cal.30 which actually made Omega successful and popular brand.

Original Omega buckle. Technical warranty: 1 year.


  • Stainless steel 3-body case with snap-on case back. Satin and high-polished finishing.
  • Polished in the past. Fine condition showing minor traces of use and minor scratches.
  • 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. Antimagnetic. Incabloc shock protection. 
    • Serial number: 13748236
    • Service history is unknown. Timegrapher shows strong results: 240 degrees of amplitude, 0 ms of beat error, -5 seconds a day. 


    • Untouched authentic creamy-white dial in good condition showing moderate ageing and spotting over the surface. 
    • Printed golden Arabic numerals and raised hour markers.
    • Signed "Omega" at 12 o'clock. Correctly signed "Swiss Made" at 6 o'clock.
    • Original silver hands in outstanding condition. Small seconds hand shows minor ageing.

    Delivery set:

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


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