Omega Seamaster Overview of Modern Models

The Omega Seamaster was originally introduced in 1947. Today’s Aqua Terra bears the closest resemblance to the original with a dressier (yet, sporty) look, but it has still evolved a bit since then. In this post, we will discuss the 3 main Seamaster lines of today (since 1994 more specifically): The Seamaster Professional, the Seamaster Planet Ocean, and the Seamaster Aqua Terra. All Seamaster watches feature a screw-down crown.

Seamaster Pro

The most well-known series is the Seamaster Professional, which was introduced in 1994. It first became well-known to the public in the James Bond movie Golden Eye in 1995. The Seamaster Pro line has a water resistance rating to 300 meters.

Seamaster Professional Watches

All of the standard (time/date) and chronograph models include the helium escape valve at 10′. The GMT does not include the escape valve, but still maintains the 300m rating. The most common standard automatic versions use an Omega modified ETA 2892. When introduced, it used the Omega 1109, but in 1996 Omega replaced it with the Omega 1120. The 1109 was updated to the 1120 to fix a winding flaw and add a rhodium finish to certain parts for extra durability. In 2006, Omega started fitting Seamaster Pros with their improved Co-Axial Omega 2500 (also based on the ETA 2892). Each Seamaster Pro also sports a unidirectional rotating bezel, originally with an aluminum insert. In 2012 Omega started releasing the Pro with a ceramic insert.

Seamaster Pro Wave Dial

Until the last couple of years, most featured a wave pattern on the dial. Most models have either a black or blue dial. Less common are white dial, electric blue, blue-gray, and the silver / white chronograph. The 41mm and 36mm Pro’s is offered with the choice of an automatic or quartz movement. One can quickly figure which movement it has by the presence of “Chronometer” on the dial of the automatics.

The Seamaster Pro is offered in 4 sizes, with the 41mm wide, 13mm thick case being the most common and popular by far. The Chronograph is 42mm wide, 16mm thick. At the time of its introduction it was one of the larger watches you could buy. The mid-size measures in at 36mm wide, 12mm thick. The scarce ladies measures 28mm wide, 10mm thick and is only fitted with a quartz movement.

Seamaster Professional Sizes

Before continuing to the Planet Ocean, some notes on the helium escape valve at 10′. Most people will never use this feature. It is truly designed for professional use in pressurized chambers. The gases in diving bells can contain helium. Helium atoms are so tiny they can make their way inside the watch. When emerging from the water, the pressure differences between the gases and external environment can damage the watch. As its name so logically states, the valve lets the helium escape. For the rest of us, it’s just an aesthetic. Or, for the person who fidgets, it’s a crown to unscrew, and screw, and unscrew, and screw.. This action does not damage the watch or disable its professional function. That said, you want to keep it closed to prevent dust & water from entering the watch.

Helium Escape Valve

Seamaster Planet Ocean

The Planet Ocean was introduced in 2003 and had the Omega 2500 Co-Axial movement from the start. Omega beefed up the case significantly to enable the Planet Ocean’s to go even deeper, with a water resistance rating of 600 meters. The Planet Ocean (and the Aqua Terra line) are the first Seamasters to get the latest features, such as: ceramic and LiquidMetal bezels, the Si 14 silicon balance spring, and most recently the in-house Omega 8500 caliber. Until 2012, the PO was only offered with a black dial. In the past couple of years, Omega added blue and white options. The Planet Ocean is only offered with automatic movements.

Seamaster Planet Ocean Big Size :

The Omega Planet Ocean is offered in 4 sizes. The smallest being 42mm wide, 14mm thick. Next up is the Planet Ocean Big Size (previously labeled XL) at 45.5mm wide, 17mm thick. Finishing up the line is the Chronograph at 46mm wide, 18mm thick! The newest size option is 37.5mm is marketed to be worn by women and was only recently introduced. We have yet to personally see one in this smaller size.

Planet Ocean Sizes

Seamaster Aqua Terra (and Seamaster 120)

Last up in the line up is the Aqua Terra line which Omega seems to treat as their sandbox for new styles and variations. Its direct predecessor, the Seamaster 120 had a much simpler history. The Seamaster 120 had a (surprise, surprise) water resistance to 120m and was produced from 1994 to 2003. The 120 primarily came in a ladies 26mm, or gents 36mm case, with the exception of the unique 38mm Seamaster 120 Digital which had a multi-function movement with functions similar to the Breitling Aerospace.

Seamaster 120 -  2301.21

Omega introduced the Aqua Terra in 2003. All the models are water rated to 150 meters. Most Aqua Terra models are only produced for 1-5 years, a much shorter time span than the majority of Omega models.

Omega Aqua Terra Watches

As mentioned, Omega likes to try new things with the Aqua Terra. To give an example of some of the variations, today you could go an Omega Boutique Store and find a regal 43mm Annual Calendar (which will keep track of the months, and move the date forward accordingly at the start of a new month), standard (date/time) co-axial versions in 41.5mm, 38.5mm, 34mm, and 30mm ( and 30mm cases can be found with quartz movements), a huge 49.2mm Small Seconds, 44mm Chronograph, and 44mm Chronograph GMT (which is the most sporty Aqua Terra in existence in my opinion).

Omega Aqua Terra Chronographs

Plofprof & Conclusion

For the sake of the completionist, Omega also offers the Seamaster Proprof 1200m which is a massive 55mm x 48mm and a reincarnation of the 1970s Omega of the same name.

In the future, we plan to present the various product lines in more detail. Let us know if you have any questions on the Seamaster line and we would be more than happy to help!

[lightbox thumbnails=”true”][author]

By Cory Berry

Cory Berry is an internet jack of all trades and has been highly involved with Swiss watches since 1996 when he began working for Bernard Watch. He has learned a lot about the Swiss watch and internet industries in that time. and has witnessed brands rise and fall, seen watch close-outs come and go, and observed many trends. At Bernard Watch, Cory helps customers find the right watch (or watches) for their wrist. He designed and manages He enjoys writing about watches and managing the company’s social-media properties.


  1. Cory, I am looking for an Omega Deville Limited Edition. The style number is 4636.3032.

    Two other style numbers are 431. and

    Let me know if see one of the these used in mint condition.


    1. Hello Jeffrey. All 3 of those are good looking watches! The steel with rose markers is the only one we’ll likely see in the future. I’ll put you on our notify list if one comes around. We are very rarely offered solid gold Omega watches.

  2. Hi! I’m close to buying an Omega Seamaster Professional 300m Titanium (blue face). 2231.80. These are fairly rare and it’s not easy to find information on them. So two questions if you don’t mind: Are there two different band styles (and if so, which years apply)? And should there be a white line/box surrounding the date? Some have it, some don’t. Really appreciate it! You may save me $3,000 worth of fakery… Cheers!

  3. Corry, thank you for the info. I’m planning to buy an Omega Seamaster, but I read a lot and not quite sure the different between the Seamaster prof and the Seamaster diver. Also I see other models called driver. Can you advise the difference and which one is better; Automatic of Chronograph? Please help me

    1. Hello Ayman. A little over a year ago Omega renamed their “Professional” to “Diver”. The produced between 2008 and 2012 reads Professional on the dial and has the wave pattern. In 2012, Omega introduced the which has a ceramic bezel, a glossy black dial, and they dropped the Professional name.

      This makes sense to me, as the Planet Ocean and PlofProf are much more “professional” as they can withstand much pressure/water. We (and Omega) have been calling the 300m Diver model the Professional since 1994, so we are still adjusting to the name change. 🙂

      You then asked if Automatic or Chronograph is better? All the Seamaster chronos are automatic. The only reason to get a chrono is if you will take advantage of the stop-watch function or just really prefer the way it looks, otherwise go for a time/date only model. The more complications a movement has, the more it will cost to service it.

  4. Hi Cory… I own (and am very proud to do so!) an Omega Seamaster Pro co-axial chronograph. I have the problem of the screw-down crown stripping the thread (which, sadly, seems to be a fairly common occurence). My question is does this actually in truth stop the watch being waterproof? I do not aim to become a diver but I am now too afraid to even wear the watch in the shower, when swimming or even just washing up. This may not seem to be such a problem but trust me it is tiresome having to remove it and leave it in the locker when taking my grandson to the local swimming pool especially after waiting many years to finally own a pucker waterproof watch.
    Look forward to your honest opinion or definitive knowledge direct from the horses mouth! lol
    Kindest regards

    1. Hi Gary. First off, yes, keep that watch out of the water if you can’t screw the crown down! Thankfully, replacing the crown isn’t too costly and a good watchmaker should be able to easily make your watch water resistant again.

      I have never actually heard of Seamaster crowns getting stripped. We buy dozens of pre-owned Seamasters every year. I checked with my co-worker who does our incoming and he recalls two (a Planet Ocean & an Aqua Terra) instances of getting watches with a stripped crown. So, it CAN happen but is pretty rare.

      Personally, my Seamaster Pro is about 12 years old and if I had to guess I’ve set and wound it 500-800 times via the crown and it still works great.

  5. Hello, my friend. I was wondering… The Seamaster Pro does not have a 45mm one?? My father has one and it is pretty similar. Are they the same model??? He has the black one.

        1. Now you’ve linked me to a titanium version with a blue dial. We’ve had a few of those in the past (Omega 2298.80) and they are just come in one size (sometimes called 42mm, sometimes 41.5mm).

          Omega uses pretty standard sized boxes. From your photo, based on the way the watch sits on the holder in the box, that watch is what we would call 42mm. We (and most watch manufacturers) do not count crowns or pushers in our sizes.

          Omega has recently released a 44mm Seamaster Pro (Diver) with a co-axial escapement, but it has a different dial setup.

      1. Friend, now I’m confused. Are you absolutely sure that Omega does not offer a 45mm case of that watch?? I have it right now at hands and I’m pretty sure that’s 45mm. Do you think it is fake?? It has all the certification and documents and etc.

        1. Omega does not offer this chronograph model in what they/we call 45mm.

          From what I can tell, you have a genuine watch, you are just not measuring it by ours or Omega’s methods. There are ways to measure the 41.5mm model and see it as 45mm.

  6. Very informative post. Any more info on the grey dial versions ? We’re they produced for a certain market or ?

    1. Hello James. Gray dials? Are you referring to when I mentioned the Seamaster Pro models can have a blue-gray dial? They are more blue than gray and were just a lower production. They were not made for any particular market to my knowledge.

      Omega currently makes a gray dial for their Aquaterra line, such as this one we sold recently:

  7. Hi Cory, I have a Seamaster Ocean Planet 600m chrono. I’m finding that if I don’t manually wind it at least every couple days, it will stop. I wear it every day. Sound like an issue? It’s supposed to be automatic.

    1. Hello Jim. Assuming you are fairly active (you don’t need to be an athlete by any means!), the watch should keep going if you wear it more than 12 hours a day. If it’s still stopping, it could be time for a routine service (COA: clean, oil & adjustment).

  8. Hello Cory,

    I’m planning to buy a Seamaster Professional. I found an Seamaster from 2006 with on the back of the watch a wave next to the dragon.
    And a Seamaster from 2011 with no wave next to the dragon… Can you explain this?
    Both in good condition, except the price…
    2006 is 840,- euro and the 2011 is 1450,- euro–id2637213.htm?picnum=1&tab=details&urlSubpath=%2Fuser%2Fnotepad.htm–id2900400.htm?urlSubpath=%2fuser%2fnotepad.htm

    What is your advice?

    1. Sorry for the late reply. I see the 2223.80 already sold, but I feel the 2561.80 is a much better value. Omega just did minor cosmetic changes. Notably the case back and “Seamaster” in red. Otherwise it’s nearly the same watch. At 840 euro vs 1450 euro, it would be a no-brainer to me to go for the 2006.

  9. Hello Cory,
    I have a seamaster, Do you know if can be fit seamaster 2230 dial in that watch?.
    Best Regards, Hector.

    1. Hello Hector. Interesting question and that’d be a good looking combo. We know the 2230.50 will fit in other cases that have the caliber 1120, but we can’t say for sure on Seamaster’s with the caliber 2500. I don’t see a reason why not, but we’re not in the practice of modifying watches like that so I can’t say for sure.

  10. I would appreciatre if someone could help me with an Omega Planet Ocean GMT. It is an issue of colors. According to Omega webpage, Planet Ocen ref. has blue dial, white numbers and oragne numbers in the rotating bezel. There is another PO GMT that comes with blue dial, Orange numbers but white numbers in the rotating bezel. Does anyone know the reference number of this one and whether it is currently produced? Thanks a lot

    1. The GoodPlanet with ref. is the special edition GoodPlanet. If I recall, when the Planet Ocean GMT was introduced, it only came in the one style with orange markings.

      Soon after, Omega added another 10 configurations to the ‘Planet Ocean 600 M Omega Co-axial GMT 43.5 mm’ line including one in red gold, one in platinum, and the blue dial-blue bezel with white numbers model in titanium. The So if you want that blue look, you’ll need to pay up a little more for the titanium, but it’s a good deal lighter! I could see Omega offering the blue/white setup in steel at anytime.
      Planet Ocean 600 M Omega Co-axial GMT 43.5 mm

  11. I just bid on a seamaster on ebay for my husband-I am worried as it does not have the detailed back that is typical of this range. Do they all have this detail? the one I was looking at is a vintage Seamaster 1315-I would appreciate a professional opinion on this!, many thanks

    1. Hello Rebecca. We specialize in modern Omega, however do have some slight vintage knowledge. We think it sounds right that a 70s Omega could have a blank case back from the manufacturer. The 1315 likely refers to the quartz movement. Hope that helps.

  12. Hi Cory – great post. I have a Seamaster 300M Co-Axial GMT 41mm ( I cannot find too many of them around nor details on why Omega stopped producing them. I bought mine a few years back, it has skeleton hands and is the automatic version. It’s not immaculate as I have worn it every day since i bought it, but i have the box and papers, cert cards etc. What would one typically re-sell for and are they more ‘collectible’ than other types of ‘James Bond’ Seamasters? Finally, why did Omega stop making them? I am sorely tempted to upgrade to the new Planet Ocean version in the pic above. I tried one on the shop today and it looked great, though a little larger! Thanks.

    1. Hi James. The Seamaster 300M GMT line has pretty much always been a mediocre seller with a low demand / low supply type of thing going on.. At least from our perspective. We have no numbers from Omega that confirms that, but we’ve seen a lot of Seamaster pieces come through. Really the only one that’s appreciated faster than the average automatic Seamaster is the 2538.20 aka the “Great White”. You do have a fine watch, but I would not refer to it as ‘collectible’. As of December 4th 2014, we have one 2535.80 Co-Axial Blue GMT in stock. If you would like to get a value on your watch, please fill out our Sell Your Watch form.

      I assume Omega stopped production on them based on long term dismal sales, but again, that’s just an assumption based on watching them from the sidelines for 2 decades.

  13. Hi there Cory,

    I like the older Seamaster 300m GMT (2535.80.00) 41mm because of the dual GMT and Diver functions. This model is no longer available but am planning to get one. The newer Seamaster 300m Diver ( 41mm has a nicer modern bezel. So the question is, “Can the bezel of the older 300m GMT be replaced with the bezel of the newer 300m Diver as it appears both have the same case size”? What is the approx. bezel cost? Many thanks.

    (The newer Seamaster GMT model is too large for my wrist size).

    1. Hi Vijay. I am going to say no, that’s probably not possible. If you asked Omega, I know they would say no and they would not perform the change.

      We had a ceramic bezel on a Planet Ocean replaced this year and it ran us about $300. I would suspect the aluminum and ceramic inserts are secured to the steel bezel in a different way and would not be compatible… so if you had to replace the whole bezel, will that different bezel secure onto the old case? If you are serious about this change, find a watchmaker who has an Omega parts account and ask them.

      If you could get it swapped, the color differences would be off and I suspect not too appealing.

      1. Guessed as much and many thanks for your learned advice based on your knowledge and experience. I may now consider either the current Seamaster 300m Diver or the Breitling Superocean Limited edition blue dial.

  14. Cory,

    I just finished reading your information here and I really appreciate the knowledge. I need a little guidance concerning model, bracelets, and fit for my wrist.
    Male, 175 lbs, 6ft tall, 28 years old, fit frame but thin wrists. I really like the Omega Seamaster and I want a comfortable fitting model that I can wear for a lifetime. Would you point someone my size towards a 41mm? And I actively dive, but I would never get full the use out of the 600m functionality of the Planet Ocean. I am an active person and functionality is my goal, with that in mind, is it realistic to initially purchase with the metal bracelet and have a rubber one put on for functionality? And lastly, through a lifetime of functionality would you see much difference in a PO vs a Diver model? Or would the smaller nature of the Diver model be a better route. Just trying to make the right purchase the first time! Thanks again for your help!


    1. Hello Adam. Having worn a Seamaster Pro (now called Diver) for most of the past 14 years I can vouch for its ruggedness and durability. The Planet Ocean is thicker. While I do like the aesthetics of the Planet Ocean, I feel even the smaller size would be too big for me. A 41mm Seamaster Diver is a versatile size, and unless you specifically want a BIG WATCH, it will be fine for someone of your build. The 36mm mid-size might fit, but most men will find the watch too small.

      If you can, find an Omega Boutique or Authorized Dealer you can try the watches on at. We always have a hefty selection of Omega Seamasters when you’re ready to pull the trigger.

  15. Hi Cory,

    I have a question for you, can you tell me if the Omega 25982000 is a rear Watch, and why Omega don’t make so many of this model?


    1. We’ve seen a half-dozen of the white dialed Omega 2598.20 over the years. Most of them were from the late 1990s. I don’t know if I would call it rare, but it’s safe to say it’s scarce. Seems like if one really wanted one it wouldn’t be too difficult to come by.

      Omega Seamaster Pro Chronograph with 7750

  16. Thanks for the write up! I’m interested in getting a Seamaster with wave front face (I wish Omega kept that design) and co-axial movement. Do you know what’s the last model numbers Omega made with these two features? Thanks!

  17. Hi Cory, great posts and great comments! I have a question; I have theSeamaster Professional Co-Axial GMT : 2535.80. I love it. Only problem is that the metal band is too ornate for me (I know the purists will say ‘you van’t put another model strap on!!) and I really like the simpler metal strap from the new Speedmaster, and the metal strap for the Planet Ocean. My question is do any of the other Omega straps fit? and if yes, where is a good place to get one? Many thanks!!!

    1. David, The 2535.80 model should accommodate the so-called “speedy” bracelet (model 1610/930). If you don’t have a local Omega dealer who can order it for you, you might try – P.J.

  18. Hi , regarding the seamaster chronometer 120 mtr ….. Im 99.9% certain that they started life in the 80’s.
    Slightly diff; to the one in this article , with ‘solid hands’ & diff; options in dials. Ive a black dial , 18ct bezel , crown & clasp release & it dates to 86 according to serial # & also research conducted agrees that these were first released in first 1/2 of 1980’s. Just thought i’d let you know.

  19. Hi. When is it likely for the 2500d to be replaced in the Seamaster professional? It seems that a in house option is due now, even Tudor are going in house. Thanks

    1. Hi Paul. It might be never, or at least not anytime soon. By using the older (very reliable) movements, Omega can keep the costs down on the Seamaster Diver (and some Aqua Terra) models. It’s important for many Swiss brands to have tiers of quality. The 8500 is a premium-caliber and superior to Tudor’s in-house.

      That said, we have no affiliation with Omega. They could announce tomorrow they are phasing the 2500d out! I see more likely they’ll just continue to tweak small improvements to the 2500 series.

  20. Dear Cory,

    Thank you very much for your interesting article about modern Omega watches. I personally have latest Seamaster Pro 300m with 1515/816 band, actually I have a question about this band. Unfortunately, locking mechanism broke two days ago and i was trying to open it to see the type of spring it has. I was surprised with fact that its locking mechanism don’t use spring and i don’t know how to fix it… buying a new clasp will be costly, so may be you have suggestions how to fix it.

  21. I really like the Omega Seamaster Professional Midsize : 2551.80, with Cal. 1120 (base ETA 2892-A2). Does this watch have a co-axial movement?
    Any info is appreciated. Thanks.
    – RCC

  22. Cory.
    I’ve had my Omega Seamaster for about 10 years now. It doesn’t have the skeleton hand but the full luminous hands. Is there any way I can tell what year this watch was made by the numbers on the watch and what engine it has?
    R T

    1. If it is automatic and does not say Co-Axial on the dial, it’s going be a Omega Cal. 1120 (base ETA 2892-A2). If you provide the first 3 digits of the serial, I can provide an estimate of the age. There are no Omega serial charts like there are for other brands, but we’ve sold so many Omega’s I can approximate based on our data.

  23. Hello Cory, I’m in the process of buying an Omega Seamaster professional from an authorized Omega dealer. But to my surprise I saw the same watch at Costco. Is their any difference?

    1. I can’t speak for either of those companies so I can only make assumptions in answering your question.

      Assuming both watches have the same model number, the watches will be identical. The main difference is buying from the AD will give you a full manufacturer warranty. You will not get that with CostCo. You’d have to read the terms CostCo has on that.

    1. Hi, Michael. Like this one?

      Seamaster Professional : 2255.80

      We refer to these as an “electric blue dial” and the bezel is an aluminum insert. They are not rare. There’s less of them than their black and blue counterparts, and this design has far less demand. We’ve seen plenty around since 2003.

      That said, a style like it is not on the current offerings so the demand and rareness should logically increase as time passes. The dial was offered in quartz or automatic, with both styles of bracelets, and also in titanium or with an 18k bezel. We’ve seen about 7 model numbers with that dial.

  24. Hi Cory,

    I have an Omega Seamaster Planet Ocean, ref. number 29015182 (42mm). I bought this watch with a rubber strap but I want to replace it with a steel bracelet.

    My jewelers says I need the steel bracelet with number 1580/953 for my watch but I was wondering if the steel bracelet with number 1610/930 is also compatible with my watch.

    Can you help me?

    1. The height of the end pieces is different between the Planet Ocean and Pro bracelets. We have not had any experience in trying to make that work since it’s not something we’d want to sell as it is not “correct”. The Planet Ocean models are thicker and the curve on the case between the lugs is different than the Pro model.

  25. Hi Cory, I just stumbled over and read your blog with great interest.
    What information could you give on the stainless and gold Seamaster shown in the Aqua Terra section?

    1. That’s the 2301.21 Seamaster 120. In reflection on my post, it’s a bit odd that it’s in the Aqua Terra section. My logic was that Omega swapped out the 120 line for the Aqua Terra line. The Seamaster 120 supplies have been drying up since it’s now been 13 years since Omega shipped any.

  26. hey Corry,
    i am planning to pick up Omega Seamaster 300M GMT 44mm dial. i can’t find much reviews and news about this watch. Is this watch a good buy for collection.

    1. I’m not sure exactly which GMT you speak of. In general, the GMT Seamasters do not hold up as well as their time/date only counterparts.

      If you have a personal use for the 2nd time zone, I say go for it. It’s not a bad buy. Seamasters are always good!

  27. Hey Corry,

    i have a question regarding the Omega Seamaster Aqua Terra 2503.33.00. Mine starts with number 806, do you know the production date? And do you kniw when this model or the 2500Ats got discontinued?

    1. An Aqua Terra starting with a serial 806 is likely from 2003 based on our past sales and serial numbers.

      I think the 2503.33 was produced from about 2002 to 2008. The 2500 A & B calibers had a short run before they were replaced with the 2500C (and D).

  28. Hi Cory – Actually, the Planet Ocean was introduced in 2003. I know because I bought one with the orange bezel and rubber strap in Barbados when the US$ was suffering against the GB£ so I paid $2,200 which after taking the duty off, worked out at about £900. Kept the watch for 12 years and sold it last year for £1700. Happy with that. Just bought the 2016 PO XL and picking it up today. Very excited.

  29. Looks like you’re still replying to these so i”ll leave a question.

    What’s the difference between a Omega Seamaster 168.1641 and a Omega Seamaster 2253.80.
    They look to be identical. They’re 36mm, good size for men or is it a bit on the small side?

    1. As far as I can tell, the 168.1641 is an alternate reference for the same watch, but that still doesn’t really make sense. We have seen a half-dozen 2253.80 models from 2001 to 2009 (the first and last time we saw it), but we’ve never ID’d a watch as the 168.1641. That layout of model number usually indicates a late 80s to early 90s models, but the Golden Eye bond style didn’t hit the shelves until 1994/3 and used the more common xxxx.xx format. If I were looking to buy a Seamaster and the seller called it the 168.1641, I’d be asking them where they got that number from.

  30. New acquired vintage Omega Seamaster 300 from 1995. Anyone had problem with pip triangle not aligning up at 12 o’clock with bezel tip?

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