Seamaster Diver 300M Co-Axial Master Chronometer Steel & Sedna Gold on Strap

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Key Features

  • This timepiece features a 42mm steel case paired with a high quality rubber strap. It showcases a distinctive blue dial and is powered by a precise automatic winding movement. The watch is designed with a water resistance of up to 300m.
  • We are Authorized Dealers, ensuring you receive 5 Year warranty directly from Omega.
  • Worldwide Shipping.
  • Multiple financing options. Learn more.
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Omega Seamaster Diver 300M Steel & Sedna Gold Review

This timepiece brought a number of new features as well as some of the traditional features Omega has been implementing with their timepieces since 1993. The Omega Seamaster Diver 300M Co-Axial Master Chronometer Steel & Sedna Gold on Strap ( is a 42 mm model that has a brushed stainless-steel case with polished beveled corners and

18K Sedna™ screwed down gold crowns. It includes a unidirectional rotating blue ceramic bezel with a Ceragold™ diving scale and is water-resistant for up to 300 meters or 1,000 feet. The Swiss made timepiece is a domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides and the sapphire crystal exhibition case back is also intensely resistant to fading.

The dial is also polished blue ceramic and features laser-engraved waves and features a date window at 6 o’clock instead of the 3 o’clock which is less traditional but brings the asymmetrical look to the timepiece. This timepiece has a self-winding movement with co-axial escapement. Driven by Omega Master Co-Axial caliber 8800, beats at 25,200 vph which can be seen through the sapphire-crystal on the wave-edged case back and has an approximate power reserve of 55 hours. Also, a Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Free sprung-balance with silicon balance spring, automatic winding in both directions. Also, The rotor and visible bridges are decorated with a unique arabesque wave design finish.

The skeleton hands and raised indexes are 18K Sedna™ gold and are filled with white Super-LumiNova and include a red-tipped second hand. Also, the helium escape valve has been given a conical design. The lung end of the timepiece is flatted which is something new to the timepiece that brings a different feel to the fit and wear of the timepiece. The watch is presented on a blue rubber strap with a bandwidth of twenty millimeters, a seven-inch adjustable strap, and a stainless-steel tang clasp.

The strap actually has a new variation with the rubber straps. There is a brushed double striation and a blasted or matte style seen on the straps. On the underside of the strap, there is a detailed wave pattern that is reminiscent of the dial. This detail allows heat and moisture to escape on a hot day and also the amount of material has been reduced to make the strap more pliant and supple.

This Seamaster Diver 300M Omega Co-Axial Master Chronometer 42 mm is a beautiful luxury watch model. This distinctive timepiece is truly a mixture of sport and style. It has a stylish appearance and is spot-on for those who love to put up with modern trends. It is also very comfortable to use because of its blue leather straps. The timepiece is a great addition to any watch lover who wants an elegant piece with all the features of a sports watch. This piece is on sale for $6,800.

About the Omega Seamaster Collection

Omega has been known for its “diver” timepieces. Seamaster Professional Diver 300M is one of the more popular diver watch models in the Omega collection. These models are usually associated with James Bond for the bells and whistles and also the luxurious creation that can be seen throughout each timepiece in the collection. In 2019, Omega refreshed its Seamaster Diver 300M with a Chronograph collection. Omega has embraced the famous ocean heritage and updated it with some of Omega’s best innovation and design with this modern collection.

The new chronograph versions of the Seamaster Diver 300M is something that you’d expect from the Omega brand. For instance, with this collection, it is part of both the development of the collection and also is the extension of past models by setting new design codes

The basic principle of the Omega Seamaster Diver 300M Chronograph is to have the chronograph versions of the 2018 Diver 300M models. These models were tested and approved at the Planet Ocean 600 Chronograph model. The Caliber 9900 used in the new models was Master Chronometer certified, providing up to fifteen thousand gauss magnetic field resistance.

In this collection, there are a total of seventeen new Diver 300M models to choose from that each brings a level of fashion from the sporty to business professional. This includes eight in stainless steel, eight that is a mixture of stainless steel and gold - and one model in Sedna™ gold. Each model is displayed on an integrated black or blue rubber strap, or a traditional steel bracelet with a new ergonomic design and a patented extendable fold over rack-and-pusher with diver extension that makes the watch easy to wear.

In addition, each version has a dial-in ceramic with laser-cut wave engravings, but you’ll also see that each of the timepieces all have ceramic chronograph pushers as well.




5 Year

Reference Number




Stainless Steel & Sedna Gold



Case Diameter ⌀



Sapphire Crystal



Water Resistance






Dial Markers



Sedna Gold


Hours, Minutes, Seconds, Date, Rotating Bezel, Helium Escape Valve

Movement Type


Movement Description

OMEGA Master Chronometer Calibre 8800


Rubber strap


Rubber Strap, Blue

Buckle Type


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Common Questions Answered

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Yes, this watch comes with a 5 Year warranty directly from Omega.

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