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New Features: The Omega Seamaster Diver 300M with Date Window and Sapphire Display Caseback

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The 2018 Omega Seamaster Diver 300M in blue is the core model in a lineup of Baselworld 2018’s most warmly received dive watch collection. Descended directly from the original 1993 Omega Seamaster Professional Diver 300M, the new Omega is the variant that watch buyers and watch collectors have anticipated more than any other Omega watch of 2018. Now sized 42mm rather than its predecessor’s 41mm, the Diver 300M has been upgraded with a factory bracelet whose end links pivot; the enlarged Seamaster Diver 300M now wears more easily on a small wrist than its 41mm predecessor. A diving clasp with both fold-out extension and a push-button incremental sizing slider allows the same degree of fit flexibility formerly exclusive to the Omega Planet Ocean and PloProf 1200M flagship dive watches. The Omega Seamaster Professional helium release valve has been reprofiled with a conical form and upgraded with the newfound ability to open safely while submerged. A blue ceramic diving bezel insert features white enamel inlays and unidirectional ratcheting action for safety during dives. The “Omega Wave” dial from the Pierce Brosnan era of James Bond Omega Seamasters has returned, and Agent 007 no doubt would approve of Omega’s use of laser-engraved blue ceramic for peerless shine and ageless durability. The new date window at six o’clock better balances the dial, and slightly reprofiled skeleton hands recall the 1990s Seamaster Professional 300M chronometer of James Bond fame. Inside the case, a new Omega co-axial Master Chronometer automatic caliber can be viewed through the Seamaster Diver 300-meter’s first series-production sapphire display caseback. The METAS-based Master Chronometer certificate includes all of the COSC Swiss chronometer testing thresholds but adds extra tested timing positions, fully-cased evaluations of performance, and verification of power reserve, winding efficiency, anti-magnetic resistance, and water resistance. The Omega Si14 silicon hairspring ensures immunity to magnetic fields in excess of 15,000 Gauss. The Omega caliber 8800 employs the now time-tested George Daniels co-axial escapement for improved precision, reduced maintenance requirements, and extended power reserve; the 2018 Seamaster Diver 300M offers 55-hours of power reserve when fully wound. The Omega Seamaster Diver 300m is encased in 42mm of stainless steel surrounding a blue wave dial on a stainless steel bracelet. Functions include hours, minutes, seconds, date, and helium release valve. The watch also measures 13.6mm in thickness and 50mm from lug-to-lug. For complete details, watch the full review! Visit our website at for the latest pre-owned luxury watch arrivals and industry-leading value in previously loved luxury timepieces.

Design and Size Upgrades

Larger Size of 42mm

The Omega Seamaster Diver 300M has received a size upgrade, now coming in a larger 42mm size. This increase in size allows for a more prominent presence on the wrist, making a bold statement. The larger size also enhances legibility, making the watch easier to read at a glance.

Factory Bracelet with Pivoted End Links

The new Seamaster Diver 300M comes equipped with a factory bracelet that features pivoted end links. This design upgrade ensures a seamless connection between the case and bracelet, enhancing the overall aesthetic of the timepiece. The pivoted end links also provide improved comfort and flexibility, allowing the watch to sit comfortably on the wrist.

Diving Clasp with Fold-out Extension and Sizing Slider

In addition to the upgraded bracelet, the Seamaster Diver 300M now boasts a diving clasp with a fold-out extension and sizing slider. This innovative feature allows for easy adjustment of the bracelet length, ensuring a perfect fit for any wrist size. The fold-out extension provides additional length for wearing the watch over a wetsuit or diving gear, while the sizing slider allows for precise adjustment on the go. With this new clasp, the Seamaster Diver 300M offers unrivaled comfort and versatility for divers and watch enthusiasts alike.

Improved Helium Release Valve

Reprofiled Valve for Safe Opening

The helium release valve on the Omega Seamaster Diver 300M has been reprofiled to ensure safe opening and closing underwater. This feature is essential for professional divers who spend extended periods in pressurized environments, such as saturation diving. The reprofiled valve design allows for easy operation, ensuring that excess helium can escape without compromising the watch’s water resistance.

Improved Functionality when Submerged

In addition to safe opening and closing, the improved helium release valve enhances the functionality of the Seamaster Diver 300M when submerged. The valve’s design allows for efficient helium evacuation, preventing the build-up of pressure inside the watch during decompression. This feature ensures that the watch remains reliable and accurate even in the most demanding diving conditions.

Dial and Bezel Features

Blue Ceramic Diving Bezel with White Enamel Inlays

The new Seamaster Diver 300M showcases a stunning blue ceramic diving bezel with white enamel inlays. This combination of colors adds a touch of elegance and sophistication to the watch’s overall design. The blue ceramic material offers exceptional durability, ensuring that the bezel remains scratch-resistant even in harsh underwater environments. The white enamel inlays provide a pleasing contrast, making the bezel markers highly visible and easy to read.

‘Omega Wave’ Dial in Laser-engraved Blue Ceramic

Another striking feature of the Seamaster Diver 300M is the ‘Omega Wave’ dial crafted from laser-engraved blue ceramic. This intricate dial design is inspired by the waves of the ocean, paying homage to the watch’s diving heritage. The laser-engraved technique creates a mesmerizing texture that catches the light from different angles, adding depth and dimension to the dial. The blue ceramic material not only enhances the dial’s aesthetics but also ensures long-lasting beauty and resistance to wear and tear.

New Features: The Omega Seamaster Diver 300M with Date Window and Sapphire Display Caseback

Enhanced Timekeeping Features

New Date Window at Six O’clock

The Seamaster Diver 300M now features a new date window positioned at six o’clock. This design change enhances the symmetry of the dial, creating a visually balanced look. The date window is discreetly integrated into the dial design, ensuring that it does not detract from the overall aesthetic. The white numerals on a black background provide excellent legibility, allowing for easy reading of the date even in low-light conditions.

Reprofiled Skeleton Hands

To further improve timekeeping accuracy, the Seamaster Diver 300M incorporates reprofiled skeleton hands. These hands are meticulously designed to optimize legibility and precision. The skeletonized design reduces the weight of the hands, resulting in less drag and improved timekeeping accuracy. The refined shape and size of the hands also contribute to the overall visual appeal of the watch, making it a perfect blend of form and function.

Sapphire Display Caseback

In a nod to watch enthusiasts who appreciate the intricate movements within a timepiece, the Seamaster Diver 300M now features a sapphire display caseback. This transparent back allows for a captivating view of the Omega Co-Axial Master Chronometer Caliber, showcasing the precision engineering and craftsmanship that goes into creating this exceptional watch. The sapphire crystal is highly scratch-resistant, ensuring that the display caseback remains pristine even with daily wear.

Precision and Performance

Omega Co-Axial Master Chronometer Caliber

At the heart of the Seamaster Diver 300M beats the Omega Co-Axial Master Chronometer Caliber, a testament to the brand’s commitment to precision and performance. This certified chronometer movement undergoes rigorous testing to ensure superior timekeeping accuracy. The Co-Axial escapement, a revolutionary invention by Omega, reduces friction and improves overall efficiency, resulting in greater long-term reliability and stability. With this caliber, the Seamaster Diver 300M delivers exceptional timekeeping performance in any situation.

METAS-based Master Chronometer Certificate

To guarantee the highest level of accuracy and performance, the Seamaster Diver 300M is accompanied by a METAS-based Master Chronometer certificate. This certification is awarded to watches that have passed a series of demanding tests conducted by the Swiss Federal Institute of Metrology (METAS). These tests assess the watch’s precision, magnetic resistance, and overall reliability. By achieving this certification, the Seamaster Diver 300M ensures that it meets the highest industry standards and is truly a timepiece of exceptional quality.

Materials and Construction

Stainless Steel Casing

The Seamaster Diver 300M features a robust stainless steel casing that ensures durability and longevity. Stainless steel is renowned for its corrosion resistance and strength, making it an ideal material for a diving watch. The finely brushed and polished surfaces of the casing create a striking contrast, enhancing the watch’s overall aesthetics. Whether worn during underwater adventures or daily activities, the stainless steel casing of the Seamaster Diver 300M withstands the test of time and remains a reliable companion.

Blue Wave Dial

The ‘blue wave’ dial of the Seamaster Diver 300M is a defining feature of the watch’s design. The captivating blue color evokes images of the ocean, paying homage to the watch’s diving capabilities. The dial features a wave pattern that adds depth and texture, making it visually appealing and dynamic. The luminous hour markers and hands ensure excellent legibility in all lighting conditions, making the watch easy to read both on land and underwater. The blue wave dial is a testament to Omega’s commitment to creating timepieces that are as visually stunning as they are functional.

Multifunctional Capabilities

Hours, Minutes, Seconds, Date Functionality

The Seamaster Diver 300M offers a range of multifunctional capabilities, making it a highly versatile timepiece. With hours, minutes, and seconds functions, the watch accurately reflects the time at a glance. The new date window at the six o’clock position provides convenient tracking of the current date. This combination of functionalities ensures that the Seamaster Diver 300M can be relied upon for everyday timekeeping needs.

Helium Release Valve

Additionally, the Seamaster Diver 300M includes a helium release valve, a feature useful for professional divers undertaking saturation diving. The helium release valve allows for the safe evacuation of built-up helium from the watch during decompression, ensuring the timepiece remains reliable and accurate over extended periods underwater. This functionality sets the Seamaster Diver 300M apart as a tool watch that is specifically designed for the needs of professional divers.

Title and Inspiration

Omega Seamaster Diver 300M in Blue

The Omega Seamaster Diver 300M in Blue is a stunning timepiece that combines exceptional craftsmanship and functionality. This edition draws inspiration from the original 1993 model, paying homage to Omega’s rich diving heritage. With its striking blue wave dial, blue ceramic diving bezel, and stainless steel casing, the Seamaster Diver 300M in Blue is a true statement piece that exudes elegance and sophistication.

Descended from the Original 1993 Model

The Omega Seamaster Diver 300M in Blue is a direct descendant of the original model launched in 1993. This iconic timepiece pioneered Omega’s use of innovative materials, such as the blue wave dial, and set a new standard for diving watches. The 2022 edition pays tribute to the original model’s design while incorporating modern upgrades and enhancements. The Seamaster Diver 300M in Blue embodies a perfect fusion of heritage and innovation, making it a desirable and timeless watch for diving enthusiasts and watch collectors alike.


In conclusion, the Omega Seamaster Diver 300M presents a comprehensive range of new features and upgrades that elevate this iconic timepiece to new heights. From the larger 42mm size and factory bracelet with pivoted end links to the improved helium release valve and enhanced timekeeping features, every aspect of the watch has been meticulously designed and crafted for optimal performance and visual appeal. The precision and reliability of the Omega Co-Axial Master Chronometer Caliber, combined with the METAS-based certification, ensures that the Seamaster Diver 300M meets the highest industry standards. With its stainless steel casing, blue wave dial, and multifunctional capabilities, the watch is versatile enough to accompany you on any adventure. The Omega Seamaster Diver 300M in Blue epitomizes Omega’s commitment to creating exquisite timepieces that are engineered for excellence and designed to inspire.

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