This early Omega manual wind wristwatch from 1935 houses the historically significant Calibre 23.4SC, one of the earliest centre-seconds movements developed by Omega. The 23.4SC represented an important step in the evolution of Omega’s wristwatch design, combining reliability, compact engineering, and elegant proportions that set the standard for the brand’s later manual calibres.
The 34mm stainless steel case wears beautifully, retaining strong lines and remarkable preservation for a watch now approaching its 90th year. Its original dial has aged gracefully, developing a stunning tropical patina that adds warmth and depth to the overall appearance. This gentle ageing is completely even and perfectly complements the watch’s vintage charm.
Paired with a tan leather strap, this early Omega remains both understated and sophisticated — a window into the craftsmanship of pre-war Swiss watchmaking.
Key Features
Reference: Unknown (Pre-reference Omega wristwatch)
Year: 1935
Movement: Manual-wind Omega Calibre 23.4SC
Case: 34mm stainless steel
Dial: Original dial with even tropical patina
Crystal: Acrylic crystal
Strap: Tan leather strap
A Word on Condition
For a watch approaching a century in age, the condition is remarkable. The case remains strong with defined edges, the dial shows an honest, even tropical tone, and the movement runs reliably following a full inspection and service. Light handling marks are present but consistent with gentle, respectful use over time.
Why Buy This Watch
The Calibre 23.4SC holds an important place in Omega’s history as one of its first manual-wind movements with a central seconds hand, paving the way for the precision and durability that would define Omega’s later tool and dress watches alike.
Pieces from this era rarely survive in such well-preserved and original condition, particularly with an untouched dial and strong case. This example offers both historical significance and immense charm — an accessible entry into early Omega collecting, yet with all the hallmarks of a serious collector’s piece.
Every watch we sell is fully inspected and professionally serviced to meet our exacting standards. We stand by the quality of our stock, which is why every purchase includes bespoke Watts On Watches packaging, full purchase documentation, and a 12-month Watts On Watches warranty for complete peace of mind.
