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There are certain vintage watches that simply feel right on the wrist, and the Omega “Jumbo” Reference 2640 is undeniably one of them. While standard dress watches of the 1950s often measured a petite 33mm or 34mm, this reference commands a modern presence with its 36mm case width, earning it the affectionate “Jumbo” nickname among collectors. It represents a golden era of Omega watchmaking, combining robust case proportions with one of the most mechanically significant movements the brand has ever produced.
The heart of this watch is the manual-wind Caliber 283, a direct descendant of the famous “30mm” family of movements that dominated observatory precision competitions for decades. Known for their large balance wheels and bulletproof reliability, these movements are the definition of over-engineering. Adding to the historical intrigue is the “Türler” signature on the dial. Türler is a prestigious high-end jewelry and watch retailer based in Zurich, known for retailing only the finest timepieces, and finding a double-signed example like this adds a layer of rarity and provenance that standard production models simply cannot match.
This particular example, dating to approximately 1954 based on its 14 million serial number, is a study in vintage character. The dial features a layout that is pure 1950s elegance, with applied gold arrowhead markers and a lone Arabic numeral at 12, but it is the surface of the dial that steals the show. The original cream finish has developed a heavy, uniform “stardust” patina, a constellation of age spots that gives the watch a completely unique aesthetic that cannot be replicated.
We are particularly drawn to the honesty of this piece. The stainless steel case, marked “Acier Staybrite” on the interior, appears to retain its original geometry with sharp edges on the drilled lugs, suggesting it has been spared the polishing wheel for much of its life. While the dial shows significant aging, the case remains crisp, and the copper-colored movement is visually clean and iconic in its architecture. It is a watch that wears its history openly, rather than hiding it.
For the collector seeking a vintage daily wearer with genuine soul, this Omega Ref. 2640 is a fantastic choice. The combination of the larger “Jumbo” case size, the legendary manual-wind movement, and the rare retailer signature makes it a compelling package. It is a piece that bridges the gap between dressy and casual, perfect for those who appreciate the wabi-sabi beauty of a tool that has lived a full life.
