£3,750.00
In stock
The OMEGA Seamaster Diver 300M Grey represents the pinnacle of professional diving watch design, combining legendary ocean heritage with OMEGA’s most advanced innovation and technology. Since 1993, this iconic timepiece has maintained its position as one of the world’s most respected diving instruments. This 42mm stainless steel model features a striking grey sun-brushed PVD ceramic dial with laser-engraved wave patterns, creating a sophisticated aesthetic that honours the collection’s maritime DNA.
Powered by the Master Chronometer Calibre 8800, this Seamaster delivers exceptional precision and magnetic resistance up to 15,000 gauss. The blue ceramic bezel with white enamel diving scale provides both functional dive timing capabilities and visual contrast against the grey dial. Every detail, from the skeleton hands filled with Super-LumiNova to the conical helium escape valve, demonstrates OMEGA’s commitment to creating professional-grade instruments that excel both underwater and as luxury timepieces.
Condition: Excellent condition
Includes: Original box & papers
Warranty: Valid until 2030
Shipping: Free UK delivery
The Seamaster Professional Diver 300M has commanded legendary status since its 1993 debut, establishing itself as one of the most recognisable and respected diving watches in horological history. Born from OMEGA’s rich maritime heritage dating back to 1948, this collection represents the brand’s dedication to creating instruments that serve both professional divers and watch enthusiasts who appreciate exceptional engineering and timeless design.
This modern iteration showcases OMEGA’s mastery of advanced materials, particularly ceramic technology developed over more than a decade of research. The combination of the grey ceramic dial with blue ceramic bezel creates a sophisticated colour palette while delivering the scratch resistance and durability demanded by professional use. The Master Chronometer certification ensures this timepiece meets the highest standards of precision and magnetic resistance, making it equally capable in boardroom settings and underwater exploration.
Master Chronometer certification represents the watch industry’s most stringent testing standards, surpassing traditional chronometer requirements through METAS approval. Unlike standard COSC certification, Master Chronometer testing evaluates the complete watch rather than just the movement, ensuring real-world performance excellence. The certification guarantees precision of 0/+5 seconds per day and resistance to magnetic fields up to 15,000 gauss, far exceeding normal chronometer standards.
For the Seamaster Diver 300M, this certification means reliable timekeeping even in environments with strong magnetic interference, from MRI machines to electronic equipment commonly found on boats and dive vessels. The testing process includes water resistance verification, power reserve validation, and precision measurement across multiple positions, providing owners with absolute confidence in their timepiece’s capabilities under any conditions.
OMEGA’s ceramic technology, developed over more than a decade, creates components with exceptional mechanical properties that significantly outperform traditional materials. The ceramic bezel and dial elements are created by firing at high temperatures, resulting in completely dense structures that are twice as light as stainless steel while offering superior hardness and scratch resistance. This makes the watch incredibly durable while maintaining comfortable wearability.
The ceramic’s hypoallergenic and non-magnetic properties make it ideal for professional diving applications, while its chemical inertness ensures long-term colour stability and appearance. The material’s natural lustre and depth create visual appeal that improves with age rather than deteriorating, making each watch a long-term investment in both functionality and aesthetics. The blue ceramic bezel specifically provides excellent contrast for underwater timing while maintaining its vibrant colour indefinitely.
The laser-engraved wave pattern throughout the grey ceramic dial serves both aesthetic and functional purposes, connecting the watch visually to its maritime heritage while enhancing legibility through textural depth. This intricate detailing, created using advanced laser technology, captures and reflects light in ways that improve dial contrast and readability, particularly important for underwater use where lighting conditions can be challenging.
The wave motif pays homage to OMEGA’s long association with ocean exploration and naval timekeeping, creating an immediately recognisable design signature that distinguishes the Seamaster collection. Combined with the skeleton hands and raised indexes filled with Super-LumiNova, the wave pattern contributes to a three-dimensional dial architecture that provides both visual interest and practical functionality for professional diving applications.
The conical helium escape valve represents crucial technology for professional saturation diving, where divers work in pressurised environments with helium-oxygen breathing mixtures. During these operations, helium molecules can penetrate the watch case due to their small size. Without a proper escape mechanism, these molecules would create dangerous pressure during decompression, potentially damaging the watch or causing crystal failure.
OMEGA’s design automatically releases trapped helium during ascent without compromising water resistance, ensuring the watch remains functional and safe throughout extreme diving operations. The valve’s conical shape provides both aesthetic integration and functional efficiency, opening at predetermined pressure differentials to maintain case integrity. This feature positions the Seamaster as genuine professional equipment rather than simply a diving-inspired timepiece.
The 42mm diameter represents the optimal balance between presence and wearability for the Seamaster Diver 300M, providing sufficient dial area for easy underwater reading while remaining comfortable for daily wear. This size accommodates the complex dial architecture, including the wave pattern, luminous elements, and date display, without compromising legibility. The 13.56mm thickness maintains a reasonable profile while housing the sophisticated Calibre 8800 movement.
With a lug-to-lug measurement of 49.90mm and 20mm lug width, the 42mm case suits most wrist sizes while delivering the substantial feel expected from a professional diving instrument. The proportions work particularly well with the blue rubber strap, creating a cohesive design that balances tool watch functionality with luxury aesthetics. This size has become the collection’s most popular choice for its versatility across different wearing occasions.
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.
Unless explicitly stated, all product images and videos are of the timepiece advertised and no stock images are used. All images and videos on this webpage are copyright of MVS Watches and copying, downloading or using elsewhere without prior consent is strictly prohibited.
£4,995.00
£3,750.00
£6,750.00
£3,750.00
£11,995.00
£8,550.00
