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    Bob's Watches
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    At Bob's Watches, your trust is very important to us. We believe that buying a pre-owned Rolex watch online should be simple, honest, and straightforward. To that end, we guarantee that every Rolex watch on our site is 100% authentic, comprised entirely of Rolex parts. Our mission is to be the leading trusted online source for selling and buying authentic pre-owned Rolex watches. We stand behind this authenticity guarantee with a full money back refund on any watch not found to be completely genuine.



The Seamaster collection is Omega's longest-running line of timepieces. Today the collection is home to a remarkably diverse assortment of water-resistant luxury watches, from professional underwater diving tools like the PloProf to refined antimagnetic scientist's watches like the Railmaster and everything in between. View our full selection of used OMEGA watches.

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Omega Moonwatch Speedmaster Black
Hesalite Crystal, 42MM Steel Model
Black Index Dial, Omega Box

Mens Omega Seamaster Diver 300M
Mens Stainless Steel Case, Blue
Retail $7,100 (45% OFF)

Mens Omega Seamaster Black
44MM Stainless Steel, Black Dial
Retail $6,000 (46% OFF)

Men's Omega Titanium Seamaster
Titanium Dial, 44MM Model
Retail $7,800 (46% OFF)

New Omega Seamaster Diver Blue
Mens Stainless Steel, Blue Dial
Retail $6,000 (46% OFF)

Men's Omega Seamaster GMT Black
Stainless Steel 44MM Black Model
Retail $7,100 (45% OFF)

Omega Seamaster Diver 300M Blue
41.5MM Blue Dial, Ceramic Bezel
Retail $6,000 (46% OFF)

New Omega Seamaster Diver Black
Stainless Steel 41.5MM Model, B&P
Retail $6,000 (46% OFF)

New Omega Seamaster Diver Black
Stainless Steel 41.5MM Model, B&P
Retail $6,000 (46% OFF)

Mens Omega Seamaster Diver Black
Stainless Steel Model, Black Dial
Retail $6,000 (46% OFF)

Omega Seamaster Aqua Terra Blue
Blue Teak Dial, 41.5MM Steel Model
Grey Leather Band, Omega Box

Omega Seamaster Aqua Terra Silver
Mens Steel & 18k Red Gold Model
41MM Silver Teak Dial, B&P (2014)

Pre-Owned Omega Seamaster Diver
Mens Stainless Steel 41MM Model
Blue Luminous Wave Dial, Omega Box

New Omega Seamaster
Red Gold 38.5MM (2020)
Retail $18,200 (46% OFF)

Omega Seamaster Planet Ocean Blue
Titanium Bracelet, Co-Axial
45.5MM Blue Ceramic, Box

Omega Speedmaster Bread Arrow
White Dial, Broad Arrow Model
Stainless Steel, 42MM

Mens Omega Seamaster Blue Ceramic
Stainless Steel 44MM, Blue Dial
Blue Ceramic Bezel, B&P

New Omega Seamaster Black
Black Dial, Stainless Steel
Brown Leather Strap, B&P

New Omega Seamaster Grey Teak
Grey Dial, Two Tone Model
43MM, Omega Box (2020)

Mens Omega Seamaster Ceramic
Stainless Steel & 18k Sedna Gold
Ceramic Wave Dial, B&P (2019)

Used Omega Seamaster Aqua Terra
Mens 45.5 Blue Ceramic Dial/Bezel
Stainless Steel Model, B&P

Omega Seamaster Aqua Terra Blue
Mens Blue Teak Dial, 41.5MM Model
Stainless Steel Model, Omega Box

Mens Omega Seamaster Diver Blue
Used 41MM Case, Blue Dial
Stainless Steel Model, B&P (2017)

Omega Seamaster Planet Ocean Black
Mens Black Arabic Model, 45.5MM
Stainless Steel, B&P (2016)

Omega Seamaster Chrono Diver Blue
Used 41.5MM Stainless Steel Model
Mens Blue Wave Dial, B&P

Omega Speedmaster The Met Edition
Mens 39.7MM Stainless Steel Case
Black Dial, Red/White NATO Strap

Omega Seamaster Aqua Terra Black
Black Teak Dial, 49.2MM
Black Leather Strap, Steel

Omega Commander's Watch Seamaster
Mens 007 Edition, 41MM Steel
White Dial, B&P (2018)

Omega Good Planet Seamaster White
Mens 38.5MM White Dial Model
Titanium Case, B&P (2019)

Omega Diver Seamaster Blue
Mens 41.5MM Blue Dial Model
Stainless Steel, B&P (2011)

Cash wire prices shown. Prices may be higher if other payment methods are selected.*

About OMEGA Seamaster Watches

With a history that dates back to 1948, the Seamaster is Omega's oldest collection still in production today. As a result, the Seamaster is also one of the brand’s most varied collections, and is home to an eclectic assortment of models from divers like the Planet Ocean to dressy sports watches like the Aqua Terra to vintage-inspired timepieces like the Seamaster 300.

However, the theme that ties all of these different watches together is that they are all based on the original Seamaster promise of robust, stylish, precise, and water-resistant watches built for active lifestyles. Whether you’re searching for a topnotch diver, a daily luxury sports watch, or a modern timepiece designed to look like it was made decades ago, the collection has plenty to offer. 


During World War II, the brand was a major supplier of wristwatches to the British Ministry of Defense. Due to the nature of how and when these watches were to be worn, they had to be particularly precise and durable. Post-war, Omega took what it learned from developing those mil-spec watches and reinterpreted them for the civilian population. In 1948, the Seamaster collection made its debut as dress timepieces that were waterproof, dustproof, shockproof, and antimagnetic. In the companies own words, these were watches "made for a life of action."

While the original Seamaster models were hardy enough for the active gentlemen, they were still dress watches that could handle getting wet; however, they were by no means dive watches. The company had previously made the Marine watch in 1932 specifically tested and approved to withstand water pressure (the Marine was tested in Lake Geneva to a depth of 73 meters); however, because it is missing essential features like a timing bezel and luminous dial (now standard in diving watches), it is often overlooked when discussing the history of the modern dive watch.  

Scuba diving was taking off in the 1950s and companies like Blancpain and Rolex had already added purpose-built dive watches to their catalogs. In 1957, Omega introduced its modern diving watch model in the form of the Seamaster 300 ref. CK2913. It’s important to note that despite being called the 300 series, the CK2913 was only rated to 200 meters due to limitations in the company's testing equipment. Together with the Speedmaster chronograph and the Railmaster antimagnetic watch, the automatic 300 model was part of a new trilogy of professional-grade that shared similar broad-arrow handsets coated in radium for luminescence, stainless steel 39mm cases, and matching steel bracelets. However, because this watch was a dive watch, it featured a rotating bezel with a minute scale to track immersion times.

In 1964, the brand updated the line with a 42mm case, a wider bezel with full 60-minute hashes, and different hands. Along with the non-date reference 165.024 version, Omega also introduced the ref. 166.024 with a date window at 3 o'clock. From 1967 until 1971, the British MOD ordered the no-date ref. 166.024 for both its navy and army branches, but modified them to mil-spec standards to include military issue engravings on the caseback, an encircled "T" on the dial to indicate the use of tritium for luminescence, sword-shaped hands, and fixed lug bars. 

Although the model eventually disappeared from the catalog sometime in the 1970s, the collection welcomed other models throughout the decades including the Chronostop chronographs in the 1960s, the massive PloProf saturation diving watch in the 1970s, and the Professional 200 dive watch in the 1980s.

In 1993, the company launched what was to become its most popular modern luxury dive watch to date - the Diver 300M. In 1995, the Diver 300M gained worldwide fame thanks to Pierce Brosnan wearing one whilst playing James Bond in the 007 film, GoldenEye. In 2005, Omega added yet another new model to the collections range with the introduction of the 600M dive watch. In recent years, the brand has added faithful reissues and vintage-inspired models to the collection including the Seamaster 1948, the Bullhead, the PloProf, the Railmaster, and the Seamaster 300. 

Price Information

Due to the vast assortment of models, complications, and materials, the price range of the collection varies considerably. Below are all the current models that belong to the collection.

  • Seamaster 1948
  • Seamaster 300
  • Railmaster
  • Bullhead Chronograph
  • Aqua Terra 150M
  • Diver 300M
  • Planet Ocean 600M
  • PloProf 1200M 

An automatic men's in stainless steel starts at around $5,000 at retail and can reach just under $100,000 for more complicated models in platinum. 

How Much Does an Omega Seamaster Cost? 

Below is a table outlining some of the retail prices for current-production watches. 

Model Reference  Size & Materials Retail Price (MSRP)
Diver 300M Master Chronometer
42mm; Stainless Steel
Planet Ocean 600M Master Chronometer
43.5mm; Titanium
Aqua Terra 150M Master Chronometer
41mm; Red Gold + Stainless Steel
Aqua Terra 150M GMT Worldtimer
43mm: Red Gold
Seamaster 300 Master Co-Axial
41mm; Stainless Steel
Railmaster Master Chronometer
40mm; Stainless Steel
Planet Ocean 600M Co-Axial GMT
43.5mm; Platinum
Bullhead Co-Axial Chronograph
43mm; Stainless Steel
Ploprof 1200M Master Chronometer
55 x 48mm; 


As one of the top-three Swiss luxury watch brands in the world, Omega produces a vast assortment of models categorized into four main collections: Seamaster, Speedmaster, De Ville, and Constellation. Below are the current-production watches that belong to the Seamaster collection.  

Seamaster 1948

Introduced in 2018 to commemorate the Seamaster’s 70th anniversary, the Seamaster 1948 collection houses faithful reissues of the maiden models. There are two main versions of these time-only vintage-inspired watches: one with a central seconds hands and one with a running seconds sub-dial

Seamaster 300 

In 2014, Omega launched the Seamaster 300 line, using the original ref. CK2913 from 1957 as design inspiration, but updating the watches with larger case sizes, modern materials, cutting-edge movements, and an assortment of metal and color options. The collection is also home to special limited-edition models such as the “Spectre” model named after the 2015 Bond film as well as the “The 1957 Trilogy” reissue of the original reference. 


Although the Railmaster made its debut in 1957 as a separate model to serve the growing scientific community, today, Omega’s famed antimagnetic watch is part of the Seamaster family. The current-production Railmaster watches stay relatively close to the original design with time-only dials featuring Arabic numerals at the four quarters and stainless steel cases. However, these contemporary iterations offer a handful of different dial options, a slightly larger case, and an impressive antimagnetic resistance rating of 15,000 gauss. 


Omega released the Seamaster Bullhead chronograph in 1969, sporting a distinctive case shape similar to a bull’s head with the winding crown at 12 o’clock surrounded by two chronograph pushers. There was also another crown at 6 o’clock to manipulate the internal rotating bezel. The modern Omega Seamaster Bullhead chronographs, unveiled in 2014, reinterpret the original model but with significant updates in regards to materials and movements.  

Diver 300M  

Since its inception in the early 1990s, the Diver 300M has grown to become one of Omega's most popular models, available in a wide array of materials and colors. Rated to 300 meters and furnished with a helium escape valve, unidirectional timing bezel, and a highly luminous dial, the Seamaster Diver 300M has everything you’d come to expect from a modern luxury dive watch. However, details like the scalloped bezel, skeletonized sword-shaped hands, and the wave-motif dial also make the Diver 300M a very stylish sports watch. Along with time and date models, there are also Diver 300M GMT models and Diver 300M chronographs. 

A Diver 300M has been featured in almost every 007 movie since GoldenEye (1995), cementing this particular Seamaster as the modern James Bond watch. Additionally, Omega makes special edition Diver 300M watches (or in some cases, other Seamaster models) with every new Bond movie release. 

To mark the Diver 300M’s 25th anniversary in 2018, Omega updated the entire lineup with larger case sizes (42mm compared to 41mm), ceramic dials, redesigned helium escape valves, and METAS-certified chronometer movements. 

Aqua Terra 150M

First presented in 2002, the Seamaster Aqua Terra is Omega’s sporty luxury watch range with countless variations to choose from, including different sizes, metals, bracelets, complications, and dials. Signature design traits of the Aqua Terra include round cases with smooth bezels, broad-arrow hands, arrowhead indexes, and grooved-dials to mimic the decks of luxury yachts.  

In addition to the standard time and date Aqua Terra watches, there are complicated editions such as GMTs, Annual Calendars, Worldtimers and Day-Dates. The collection also includes golf-themed Aqua Terra versions underlining Omega’s commitment to the sport. Developed in collaboration golf ambassador Rory McIlroy, Omega introduced the Aqua Terra “Ultra Light” in 2019, weighing a mere 55 grams due to its gamma titanium construction, and accompanied by a hefty $48,600 price tag. 

Planet Ocean 600M 

Borrowing a few design traits from the original Seamaster 300 from 1957, such as broad arrow hands, an outer minute track on the dial, and Arabic numerals at the 6, 9, and 12 o’clock locations, Omega unveiled the Seamaster Planet Ocean 600M in 2005. The Planet Ocean is fitted with a helium escape valve and offers a water resistance rating of 600 meters. In 2006, the Planet Ocean joined Omega’s round-up of James Bond watches when it was featured in Casino Royale on the wrist of Daniel Craig. 

Aside from the standard time and date Planet Ocean models, Omega also makes Planet Ocean Chronographs and Planet Ocean GMTs. Plus, the collection includes some interesting case material options like titanium, ceramic, and platinum to accompany the more standard stainless steel, gold, and two-tone choices. In 2016, Omega refreshed the line with new METAS-certified Master Chronometer movements, and current-production models are equipped with ceramic bezels. Case sizes have been modified over the years and you can find Seamaster Planet Ocean watches with 37.5mm, 39.5mm, 42mm, 43.5mm, or 45.5mm cases. 

PloProf 1200M

In the early 1970s, Omega launched the Ploprof 600M and Ploprof 1000M watches (Plongeur Professionnel, or “professional diver” in French) explicitly for technical diving. However, rather than fitting the watches with helium escape valves (HEV's) to deal with the issue of trapped helium molecules, Omega constructed the Ploprof in such a way that helium could not penetrate the case. The PloProf became a favorite tool watch amongst professional deep divers like the COMEX and Cousteau crews.

In 2009, Omega revived the unique diving watch; however, this time the Ploprof models did come equipped with HEV's fitted into their distinctly shaped chunky steel cases. In 2015, Omega updated the modern Ploprof with titanium cases, ceramic bezels, and new METAS-certified movements. 

Seamaster vs. Speedmaster

As two of Omega’s most famous watch models, a common question that arises is what’s the difference between the Seamaster and the Speedmaster. First and foremost, the Speedmaster models are all chronograph watches, sometimes also paired with other, additional complications. On the other hand, Seamasters are not all chronograph watches, although there are a few Seamaster chronograph models. 

Omega Seamaster Diver 300M vs. Rolex Submariner

The Submariner is, of course, Rolex’s flagship luxury diver while the Seamaster Diver 300M is Omega’s must-have dive watch. So what are the differences and similarities between the Omega Diver 300M and the Rolex Submariner?  

The two current-production models that resemble each other the most are the Omega Seamaster Diver 300M ref. and the Rolex Submariner Date ref. 116610LN. 

Model Case Size & Materials Movement & Functions HEV Retail Price (MSRP)
Omega Seamaster Diver 300M ref.
Stainless Steel
Time/Date; Automatic Winding; 55hr Power Reserve Yes $5,200
Rolex Submariner Date ref. 116610LN 40mm; Stainless Steel
Time/Date; Automatic Winding; 48hr Power Reserve
No $8,550

James Bond Models

Whether the Diver 300M, the Planet Ocean, Seamaster 300, or the Aqua Terra, James Bond has been wearing these types of watches since 1995. Here's a list of the models that appear in the various 007 James Bond movies: 

  • GoldenEye (1995): Seamaster Diver 300M Quartz 2541.80.00
  • Tomorrow Never Dies (1997): Diver 300M Chronometer 2531.80.00
  • The World Is Not Enough (1999): Diver 300M Chronometer 2531.80.00
  • Die Another Day (2002): Diver 300M Chronometer 2531.80.00
  • Casino Royale (2006): Diver 300M Co-Axial 2220.80.00, Planet Ocean 600M 2900.50.91
  • Quantum of Solace (2008): Planet Ocean 600M 2201.50.00
  • Skyfall (2012): Planet Ocean 600M, Aqua Terra 150M
  • Spectre (2015): Seamaster 300, Aqua Terra 150M
  • No Time To Die (2020): Diver 300M Co-Axial Master Chronometer

Discover Omega Seamaster Watches 

Discover what the Seamaster Collection offers technical excellence and elegance watch collectors gawk over. If you're looking for a new unworn or pre-owned Omega watch let Bob's Watches help. Browse our Seamaster models listed above to buy an authentic used Omega seamaster watch. Don't forget to view our full selection of used OMEGA watches, or visit our sell your OMEGA page to learn the value of your current timepiece before selling or trading-in your watch.

"The most trusted place to buy or sell a used luxury timepiece" – WSJ

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Bob's Watches is an independent watch dealer and is not sponsored by, associated with and/or affiliated with Rolex, or any other brand listed. Bob's Watches only sells pre-owned watches and provides its own warranties on the watches it sells. Rolex Datejust, Rolex Day Date President, Submariner, Presidential, Explorer, Sea Dweller, Super President, GMT Master, GMT, YachtMaster, Prince, Milgauss, MasterPiece, Air King, Cosmograph Daytona, and PearlMaster, etc are all registered trademarks of the Rolex Corporation. All brands including Brequet, Cartier, Audemars Piguet, Patek Philippe, Ulysse Nardin, Breitling and Omega, etc are trademarks of their respective owners.