Log inLog in
326 watches for "

Omega Seamaster 300 watches

Case diameter
Your selection

Your selection

Your selection

Sorry, your search did not match any items
Your selection

Sorry, your search did not match any items
Your selection

Sorry, your search did not match any items
Basic information
Type of watch
Ref. No.
Scope of delivery
Characteristics & functions
Case material
Material bezel
Dial numerals
Bracelet material
Lug width
Bracelet color
Clasp material

Sort by

Omega Seamaster 300 Omega Seamaster 300 $4,180

Omega Seamaster 300: An Underwater Companion

The Seamaster 300 from Omega effortlessly unites classic and modern elements. This diving watch was originally introduced in the 1950s, but new technology such as silicon parts, Liquidmetal, and a Co-Axial escapement bring it up to date.


  • Waterproof to 300 m (985 ft, 30 bar)
  • Chronometer-level precision
  • Ceramic bezel with Liquidmetal numerals
  • In-house caliber 8400 with a Co-Axial escapement
  • Unaffected by magnetic fields up to 15,000 gauss

On the Wrists of Deep Sea Pioneers

The Seamaster collection began in the late 1940s as a simple, all-purpose men's watch. Contrary to its name, in the beginning, it wasn't meant for underwater use. Instead, the Seamaster was actually used in the air: Royal Air Force pilots received early versions of the Seamaster as a part of their gear. However, the 300 model marks a shift in the direction of the Seamaster collection. The 300 moved the Seamaster from a simple, all-purpose men's watch to a timepiece that truly masters the challenges of the sea as its name suggests.
At the time the watch was introduced, recreational scuba diving was not yet widespread. Therefore, the first Seamaster 300 with reference number CK 2913 was predominantly worn by marines and professional divers. Some of the most well-known wearers were French oceanographer Jacques Cousteau and his team. They wore the watch in 1963 while they built and inhabited an underwater village in the Red Sea called Precontinent II. Omega also provided the United Kingdom's sea and land military forces with 300s. Overall, 1957 was a particularly important year for Omega. Not only did the legendary Speedmaster premiere that year, but the Seamaster line also expanded to include the 300 model.
Omega introduced a new version of the Seamaster 300 in 2014 at Baselworld, a famous watch trade show. The new Seamaster 300's design followed in the footsteps of its predecessors, but used modern materials.

Buying Tips

Are you looking for a diving watch with a mix of simple, timeless elegance and sportiness? If so, the Seamaster 300 is the perfect choice for you. It offers impressive technical qualities, such as waterproofness to 300 m, chronometer-level precision, and resistance to magnetism.
You have the choice between a stainless steel, gold, titanium, and platinum case. Leather and textile (NATO strap) bands add variety to these watches. Aside from yellow gold, Omega has also offered Sedna gold, an in-house alloy made of gold, copper, and palladium, since 2013. With a case diameter of 41 mm, this watch fits perfectly on almost every wrist.
The price of a 300 varies considerably depending on which model you wish to purchase. New stainless steel versions can be purchased for around 4,000 euros, while a 300 with a platinum case and bracelet will cost you over 50,000 euros. However, it's an investment that's worth it. The platinum Seamaster with reference number was a limited run of only 357 watches. Judging by the performance of other watches, we know that this sort of limited series significantly increases in value over the years.
The watch's character changes with its materials. A 300 with a bicolor gold and stainless steel design for the case and band is fashionable and stylish, and pairs well with formal wear. The pure stainless steel model with a gray-black NATO fabric strap makes a suitable companion for indoor and outdoor adventures. British secret agent James Bond wears this version in the 2015 film Spectre. To celebrate the occasion, Omega produced a limited run series of 7,007 watches with "007" engraved on the strap holder. In the span of a few months, the price rose several thousand euros. For new Spectre models, you should expect to spend around 7,500 euros.

Calibers Impervious to Magnetism

Like its name suggests, the Seamaster 300 is waterproof to 300 m, which equates to a pressure of 30 bar. It has a screw-down crown as well as domed sapphire glass with anti-reflective treatment inside. The case back is also made of glass, revealing the caliber underneath. Omega uses modern automatic movements in the watch - either the 8400 or 8400. The two movements are essentially the same, though the 8401 is more elaborately decorated. This caliber has 39 jewel bearings, vibrates at 25,200 A/h, and thanks to its two barrels, has a 60-hour power reserve. Omega put forth remarkable effort to protect the watch against magnetism. An anti-magnetic silicon balance wheel and escapement ensure that the caliber is unaffected by magnetic fields up to 15,000 gauss. The precision is on the level of a chronometer, partly thanks to the Co-Axial escapement. This innovation combines two wheels into one, requires no lubrication, and is more resistant to jolts.

Always in Style

The Seamaster 300 is extensively modeled after its predecessor. It has an arrow-point hour hand and a thin, tapered-end minute hand, just like the original 1957 model. However, it's not just a vintage watch; the Seamaster 300 is always in style. Omega is following a route similar to that followed by Rolex with the Submariner and Blancpain with the Fifty Fathoms. Both of these watches premiered in 1953 and while their designs remain consistent, they incorporate the most modern technology. For a watch that can dive even deeper, or one with a chronograph function, look no further than the Planet Ocean 600 M, also from the Seamaster series.

You might also be interested in: