Omega Seamaster 300 Professional GMT 'Great White'

The Seamaster 300 was Omega's response to the Rolex Submariner upon its introduction in 1957.

Featuring a robust steel case with a 300-meter depth rating, a rotating bezel graduated with dive-timing scales, and a metal bracelet with diver's expansion links, the early Seamaster 300 was not only functional a diver that would go on to see use in Her Majesty's Navy, but is arguably some of the handsomest sports watch designs of the past century.

As it evolved, the Omega Seamaster 300 went on to see numerous evolutionary changes, with nearly innumerable variants in a variety of materials and colorways produced in the past 60 years. This fact alone has made the Seamaster Professional line (as it came to be known) so desirable to a large portion of the collector community — simply because they don't all look exactly the same.

This example, a Reference 2538.20.00, is a GMT-equipped take on the original design dating back to circa 2004. It features the same 41mm twisted-lug case design with a sapphire crystal, a signed crown, and a bidirectional rotating bezel with an aluminum insert displaying a 24-hour scale.

Nicknamed the ‘Great White’ by collectors due to its ‘wave’ pattern textured white dial, it features luminous hour indices with black surrounds, a matching luminous ‘sword’ handset, a red ‘spear’ GMT hand, a lollipop seconds hand, and a date indicator at 3 o’clock. 

Powered by a self-winding Omega Calibre 1128 movement, this piece is fitted to a multi-link stainless steel bracelet equipped with a signed push-button deployant clasp and a handy diver’s extension mechanism for those seeking adventure abroad with a wetsuit donned and a SCUBA tank in tow.

From the 1990s on, the Seamaster 300 GMT was one of the sports watches offering a local jumping hour hand within a clean, unassuming design, serving as the value-packed compatriot to the Rolex Explorer II 'Polar'. 

Thanks to more accessible movements with ‘flyer’ functionality, GMT options are now much more plentiful. Sure, you can go ahead and buy a new shiny thing, but if you’re been on the hunt for something properly neo-vintage with a cult following all its own, you've found it with the Great White!

The story of Omega is one that captivates generations of horological devotees. The second-largest watchmaker in the world in terms of annual turnover, the Bienne-based firm has been continuously producing watches since 1848, which it does today under the auspices of the Swatch Group.

Founded in La-Chaux-de-Fonds, Switzerland as La Generale Watch Co, Omega was well ahead of the horological curve from the beginning, developing the first minute-repeating wristwatch in 1892 as well as the eponymous “Omega” caliber in 1894. This 19-ligne movement was revolutionary in that its parts could be replaced by any watchmaker in the world without modification, while its winding and time-setting via the crown provided an industry standard.

Omega became the timepiece supplier of choice for the British Royal Flying Corps in 1917, while the Americans followed suit in 1918, choosing their watches for the U.S. Army. Awards for precision chronometry became almost commonplace, while 1932 saw them become the first watch brand to time an entire Olympic Games. Their Marine, which debuted the same year, is regarded as the first commercially available diver’s watch.

During the Second World War, Omega supplied well over 100,000 timepieces to British forces, making it the largest watch supplier to the British and her allies. These watches, from the unique 6B/159 to the famed “Dirty Dozen” W.W.W, remain highly collectible today.

1948 saw the launch of the original Seamaster: Built upon the tool watch legacy of the brand’s timepieces from the War, it’s since become a byword for reliability and legibility, both as a dress watch and, more recently, as a serious diver’s tool. The Speedmaster, released in 1957 and originally marketed for the auto-racing market, first rocketed to space on the wrist of American astronaut Wally Schirra in 1962. However, it became a household name when, in 1969, it accompanied Buzz Aldrin on the Moon, and later helped save the space-stranded crew of Apollo 13 in 1970 by timing a critical rocket burn.

Today, Omega’s watches — all of which feature in-house movements — run the gamut from svelte dress pieces to the venerable Speedmaster in all its guises. Providing an unquestionable value proposition, Omega is a brand that deserves to be at the center of every serious watch lover’s collection.

Our Pledge

Analog:Shift stands behind the authenticity of our products in perpetuity.

Condition

Since our pieces are vintage or pre-owned, please expect wear & patina from usage and age. Please read each item description and examine all product images.

Warranty

We back each Analog:Shift vintage timepiece with a one-year mechanical warranty from the date of purchase.

International Buyers

Please contact us prior to purchase for additional details on shipping and payment options.

All of our watches include complementary insured shipping within the 50 states.

Most of our products are on hand and will ship directly from our headquarters in New York City. In some cases, watches will be shipped directly from one of our authorized partners.

We generally ship our products via FedEx, fully insured, within 5 business days of purchase. An adult signature is required for receipt of all packages for insurance purposes. Expedited shipping is available at an additional cost. We are also happy to hand deliver your purchase in Manhattan or you may pick it up at our showroom.

Returns must be sent overnight or by priority international delivery, fully insured and paid for by the customer. A restocking fee may apply. Watches must be returned in the same condition as initially shipped.

We welcome international buyers, please contact us prior to purchase for additional details on shipping and payment options.