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Omega Jumbo: Generous Mid-Century Proportions
Vintage Omega Jumbo reference 2505-10 reflects a confident scale for circa 1947. Its 38.5 mm steel case is balanced by a slim 9 mm profile, domed acrylic crystal and an orderly dial layout of applied Arabic numerals with small seconds. The manually wound calibre 265 brings a direct, traditional mechanical character to the design. For today’s collector, the appeal lies in the meeting of generous proportions, restrained period detailing and a hand-wound Omega movement in a watch that remains easy to wear.
Watch dossier
Important details, without the clutter.
01Specifications+
- Brand / model
- Omega Jumbo
- Reference
- 2505-10
- Estimated production
- circa 1947
- Case material
- steel
- Case diameter
- 38.5 mm
- Lug-to-lug
- 47 mm
- Thickness
- 9 mm
- Dial
- refurbished
- Crystal
- acrylic
- Crown
- signed
- Strap / bracelet
- calf leather strap
- Movement
- manual
- Caliber
- 265
- Jewels
- 15
- Movement serial
- ****7035
- Water resistance
- Splash resistant only; not suitable for swimming or immersion
02Service & provenance+
Last serviced: 03 September 2026
The service includes the following operations: • Disassembly of the watch • Movement overhaul: dismantling • Cleaning, reassembly and lubrication • Use of Moebius synthetic oils • Ultrasonic cleaning of the case • Reassembly of the case and the watch • Final technical and aesthetic checks
03Delivery & returns+
Current store policies apply to this purchase.
Included with the watch