The Omega Seamaster Cosmic, a name evocative of space-age design and enduring horological craftsmanship, holds a special place in the hearts of many watch enthusiasts. This article delves into the intricacies of this iconic timepiece, focusing specifically on its crystal – part #063PZ5123, a "GLASS PLEXI ST RING D32.94 H4.9" – and the importance of using genuine Omega parts for its restoration and maintenance. We'll explore the various models within the Seamaster Cosmic line, their historical significance, current market value, and ultimately, help guide you in deciding which Omega Seamaster might be the right fit for you.
The Crucial Role of the Crystal: Part #063PZ5123
The crystal, seemingly a small component, is vital to the watch's functionality and aesthetic appeal. It protects the delicate movement from dust, moisture, and impacts. The reference to “GLASS PLEXI ST RING” in part number 063PZ5123 indicates a plexiglass (acrylic) crystal with a steel tension ring. Plexiglass, while susceptible to scratching, offers superior shock resistance compared to sapphire crystals. The accurate dimensions (D32.94 H4.9) are crucial for a perfect fit, ensuring a proper seal and preventing water ingress.
My strong recommendation to use only a genuine Omega crystal, such as the 063PZ5123, cannot be overstated. The fit and finish of a genuine part are meticulously engineered to work seamlessly with the specific case design of your Omega Seamaster Cosmic. Using a non-genuine crystal, even if it seems to fit, can lead to several problems:
* Imperfect Seal: A poorly fitting crystal can compromise the watch's water resistance, potentially leading to damage to the movement.
* Scratches and Imperfections: Non-genuine crystals often have inferior clarity and are more prone to scratching.
* Tension Ring Issues: The tension ring plays a critical role in securing the crystal. A genuine Omega tension ring is precisely designed to work with the genuine crystal, ensuring a secure and reliable fit. Using an incompatible ring can damage both the crystal and the case.
* Compromised Aesthetics: A non-genuine crystal can detract from the watch's overall appearance, diminishing its value.
Therefore, the extra cost of a genuine Omega crystal, part #063PZ5123, is a worthwhile investment that ensures the longevity and integrity of your timepiece. A damaged crystal is a common repair, and sourcing the correct part is paramount.
Which Omega Seamaster to Buy? A Buyer's Guide
Choosing the right Omega Seamaster can be daunting, given the wide range of models and variations across decades. Understanding the history and characteristics of different models will help you make an informed decision. Let’s explore some key models and their price ranges:
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