The OMEGA Seamaster 300M Sedna Gold Chronograph represents the ultimate expression of luxury diving chronograph design, combining the legendary Seamaster heritage with OMEGA’s most advanced materials and movement technology. This exceptional 44mm timepiece marries stainless steel construction with exclusive 18K Sedna™ gold accents, creating a sophisticated instrument that excels both underwater and in prestigious settings. Since 1993, the Seamaster Professional Diver 300M has commanded legendary status, and this chronograph variant elevates that reputation through precious metal refinement.
Powered by the Master Chronometer Calibre 9900 with its innovative column wheel chronograph mechanism, this watch delivers professional timing capabilities alongside exceptional magnetic resistance up to 15,000 gauss. The black ceramic dial features laser-engraved wave patterns and Ceragold™ diving scale accents, while the unique ceramic pushers perfectly complement the bezel and dial colours. Every detail, from the 18K Sedna™ gold hands to the wave-edged transparent caseback, demonstrates OMEGA’s commitment to creating timepieces that represent the pinnacle of Swiss chronograph craftsmanship.
Condition: Excellent condition
Includes: Original box and papers
Warranty: Valid until 2026
Shipping: Free UK delivery
The Seamaster 300M Chronograph collection represents OMEGA’s mastery of combining luxury materials with professional diving instrument functionality. Since the Seamaster Professional Diver 300M gained legendary status in 1993, OMEGA has continuously refined and enhanced the collection through advanced materials science and movement technology. This Sedna™ gold variant demonstrates how precious metals can enhance rather than compromise the essential tool watch character that defines the Seamaster heritage.
OMEGA’s exclusive 18K Sedna™ gold, introduced in 2012, revolutionised luxury sports watch design through its superior fade resistance and distinctive warm colour. Named after the reddest object in our solar system, this proprietary alloy combines copper and palladium to create a rose gold that maintains its lustre indefinitely. The chronograph functionality, powered by the sophisticated Calibre 9900, provides professional timing capabilities while the ceramic construction offers unprecedented durability and scratch resistance.
OMEGA’s exclusive 18K Sedna™ gold represents a significant advancement over traditional rose gold alloys through its superior colour stability and fade resistance. Named after the reddest planetoid in our solar system, this proprietary alloy incorporates copper and palladium in precise ratios that prevent the colour degradation common in conventional rose gold. Unlike standard alloys that fade to yellowish tones over time, Sedna™ gold maintains its distinctive fiery red lustre indefinitely.
The technical composition ensures both aesthetic longevity and enhanced durability, making it ideal for luxury sports watches that endure daily wear and environmental exposure. This exclusive material demonstrates OMEGA’s commitment to materials innovation, creating timepieces that maintain their original beauty throughout decades of use. The warm, distinctive colour provides elegant contrast against the black ceramic elements while offering the prestige associated with precious metal construction.
The Master Chronometer Calibre 9900 represents OMEGA’s most advanced chronograph movement, featuring column wheel construction for precise start, stop, and reset operations. The column wheel mechanism provides superior tactile feedback and chronographic precision compared to cam-operated systems, while the Co-Axial escapement reduces friction for enhanced long-term accuracy. The movement’s dual barrel configuration delivers an impressive 60-hour power reserve while maintaining chronograph functionality.
Master Chronometer certification by METAS ensures exceptional magnetic resistance up to 15,000 gauss, crucial for modern environments filled with electronic devices. The silicon balance-spring provides enhanced precision and resistance to temperature variations, while the time zone function adds practical travel capabilities. This sophisticated movement combines traditional chronograph excellence with cutting-edge materials technology, creating a timepiece that excels in both professional timing applications and daily luxury wear.
The polished black ceramic chronograph pushers represent a unique technical achievement, matching the ceramic bezel and dial colour while providing superior functionality and aesthetics. Ceramic construction offers exceptional hardness and scratch resistance, ensuring the pushers maintain their pristine appearance even after extensive use. The material’s properties create precise tactile feedback during chronograph operation while resisting wear that would degrade traditional metal pushers over time.
Beyond durability benefits, the ceramic pushers create visual cohesion with the black ceramic bezel and dial, establishing a sophisticated monochromatic palette that highlights the Sedna™ gold accents. The non-metallic construction prevents galvanic corrosion between dissimilar metals while providing hypoallergenic properties. This innovative approach demonstrates OMEGA’s commitment to functional beauty, where every component serves both aesthetic and performance purposes.
The laser-engraved wave pattern throughout the black ceramic dial serves both aesthetic and functional purposes, creating textural depth that improves legibility under varying lighting conditions. This intricate detailing, achieved through advanced laser technology, captures and reflects light to enhance contrast between the dial surface and raised indexes. The wave motif connects the watch visually to its maritime heritage while providing practical benefits for underwater and surface use.
The ceramic dial’s three-dimensional surface interacts beautifully with the 18K Sedna™ gold hands and markers, creating visual drama that aids timekeeping precision. The pattern’s depth prevents light reflection issues common with flat dial surfaces, ensuring optimal readability in challenging conditions. Combined with Super-LumiNova filled indexes and the distinctive wave-edged caseback, this design element reinforces the watch’s ocean heritage while delivering professional-grade functionality.
The 44mm case diameter provides optimal proportions for the complex chronograph dial layout, ensuring all subdials, indexes, and hands maintain clear legibility without overcrowding. This size accommodates the sophisticated Calibre 9900 movement while offering sufficient dial real estate for the wave pattern detailing and chronograph functions. The larger diameter enhances underwater visibility, crucial for professional diving applications where timing precision can be safety-critical.
The substantial case presence suits the precious metal construction, providing appropriate visual weight for a luxury chronograph while maintaining comfortable wearability through thoughtful lug design. The 21mm lug width creates harmonious bracelet proportions that complement the two-tone steel and Sedna™ gold construction. At 17.20mm thickness, the case houses the complex movement while maintaining reasonable profile dimensions for both diving and formal wear applications.
For any purchases online, we offer a 14 day refund as long as they are returned exactly as sold. Any purchases in person are final.
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