The Omega Speedmaster Professional. A name synonymous with lunar exploration, adventure, and horological excellence. But before Neil Armstrong took that giant leap for mankind, wearing a Speedmaster on his wrist, there were the precursors, the watches that paved the way for its legendary status. This article focuses specifically on two pivotal models in the Speedmaster's lineage: the reference 105.002 and its immediate successor, the reference 105.003. While visually near-identical to the untrained eye, subtle but significant differences exist, primarily centered around a seemingly minor detail: the bezel diameter. Understanding these distinctions is crucial for any serious Speedmaster enthusiast and collector.
The Genesis of a Legend: The Omega Speedmaster Ref. 105.002
Introduced in 1962, the Speedmaster Professional reference 105.002 represents a significant milestone in watchmaking history. It's the watch that truly laid the foundation for the iconic design we know and love today. Sporting a 38.6mm stainless steel case, this model housed the caliber 321 movement, a manually wound chronograph movement renowned for its robustness and accuracy. The 321 is often lauded as one of Omega's finest chronograph calibers ever produced, its intricate design and reliable performance contributing significantly to the Speedmaster's selection by NASA.
Beyond the technical specifications, the 105.002 possessed a distinct charm. Its relatively compact case, by today's standards, exuded a classic elegance, showcasing the understated sophistication of early Speedmasters. The dial, typically featuring a matte black finish, showcased luminous baton hour markers and hands, ensuring readability in various lighting conditions. The tachymeter scale on the bezel provided a practical function for timing speed, further enhancing the watch's appeal to both professionals and enthusiasts. Finding a genuine, well-preserved 105.002 today is a testament to its enduring appeal and a considerable achievement for any collector. The price reflects this rarity, placing it firmly in the upper echelons of the vintage watch market. Searching for "Omega Speedmaster moonwatch used" or "Omega Speedmaster moonwatch for sale" often yields results, but verifying authenticity is paramount.
The Subtle Shift: The Omega Speedmaster Ref. 105.003
Just a year later, in 1963, Omega introduced the reference 105.003. Superficially, it appeared almost identical to its predecessor, retaining the same overall design language. However, a closer inspection reveals a key difference: the bezel diameter. Omega subtly increased the bezel size from 38.6mm to 39.7mm. This seemingly minor alteration resulted in a slightly larger overall watch presence on the wrist, although the case diameter remained unchanged.
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