The Definitive Guide to the Omega Seamaster 200M Pre-Bond

A First Look at the Pre-Bond

The Seamaster 200M was introduced in the spring of 1988 (The Omega Saga, Marco Richon). The watch gained attention when it was used during the IFREMER Faré mission, which began on 25 July 1988. During the mission, the manned submersible Nautile descended to a depth of 4,455 metres below sea level. Today, the Seamaster 200M is more commonly known as the predecessor to the famous Seamaster 300M Bond watch and is therefore referred to as the ‘Pre-Bond’. The 200M was produced until 1995. Interestingly, the 300M was introduced in 1993, meaning that both models were produced simultaneously for two years.

With this article, I aim to create a structured, definitive source of information for those interested in the Seamaster 200M Pre-Bond. At the time of writing, B&O Watches has sold over 130 Pre-Bond models. The article is therefore informed by extensive first-hand experience based on a large sample size. In 2021, Fratello published an article on the Pre-Bond using our images, describing us as a ‘familiar seller’, as we are both based in the Netherlands. Over the five years that followed, we have built up a substantial body of first-hand knowledge, enough to commit it to writing.

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Size Guide: Midsize or Jumbo Pre-Bond?

There are two case sizes we will discuss, with the third 28 mm ladies’ size omitted. The 40 mm (excluding the crown) version is commonly referred to as the full-size or jumbo model. Its official thickness is 8.85 mm, with a case width of 38.5 mm and a lug-to-lug measurement of 43.5 mm. The mid-size version measures 36.5 mm (excluding the crown), with Omega stating its official dimensions as 8.7 mm in thickness, 36 mm in width, and 41 mm lug-to-lug.

There’s an easy way to identify the different sizes from a photo. First, determine whether you’re dealing with a quartz or automatic model. The dial will read ‘Professional’ for quartz models and ‘Automatic Chronometer’ for an automatic Pre-Bond. Then look at the date window and the minute marker at 3 o’clock:

• Quartz: Mid-size models have no gap between the date window and the marker.
• Quartz: Full-size models have a gap between the date window and the marker.
• Automatic: Mid-size models have only a date window and no adjacent marker.
• Automatic: Full-size models have no gap between the date window and the minute marker.

Pre-Bond quartz mid-size, quartz full-size, automatic mid-size, and automatic full-size.

Since the bezel occupies a large portion of the watch’s face, the dial appears (and is) quite small. Combined with the integrated bracelet design, the Pre-Bond also wears relatively small. On my 17.5 cm (6.9") wrist, the mid-size model fits well. On the 18.5 cm (7.3") wrist of my business partner, it lacks the same presence. I can likely still pull off the jumbo model due to its 8.85 mm thickness, but it certainly looks better on a larger wrist. For more wristshots please take a look on our Instagram.

Mid- and full-size Omega Seamaster 200M Pre-Bond on a 17.5 cm and 18.5 cm wrist.

Movements in the Pre-Bond

The Pre-Bond is available in both automatic and quartz versions. The automatic model uses an ETA 2892-2-based movement and is marked ‘Automatic Chronometer’ on the dial. Early models were fitted with calibre 1111, which had issues with automatic winding performance. To address this, Omega reprofiled the rotor and increased its weight. The updated movement was then introduced into the Pre-Bond as calibre 1109. Both calibres feature 21 jewels, a hacking function, a quick-set date, a beat rate of 28,800 vph, and a power reserve of 44 hours. As these movements are ETA-based, they are straightforward to service and maintain.

The quartz models also use an ETA-based movement, the 255.561, and can be recognised by the ‘Professional’ text on the dial. Initially, calibre 1441 was used, a movement known for its precision and reliability due to thermocompensation. It remained in production for only one to two years before being phased out and replaced by calibre 1438, which lacks thermocompensation. It's fair to say that the 1441 is the most sought-after movement.

Omega Seamaster 200M Pre-Bond movements: 1438, 1441, 1109, and 1111.

Dial and Bezel Configurations of the Pre-Bond

There are three dial and bezel colour combinations. The most common features a black dial with a black bezel, both with white lettering. A black dial was also produced with gold lettering, paired with a black bezel with gold numerals. Lastly, a champagne dial was offered alongside a black bezel with gold lettering. The bezel is unidirectional and rotates with 60 clicks. Gold bezels consist of a solid 18ct. gold ring with a notched underside in steel. All dials are tritium-lumed. 

Dial and bezel configurations of the Omega Seamaster 200M Pre-Bond.

Bracelet and Clasp Variations on the Pre-Bond

The bracelet, borrowed from the Seamaster Polaris, comes in two versions. The first is entirely stainless steel, while the second features gold-capped centre links. Importantly, not all gold-bezel models were fitted with bracelets featuring gold-capped centre links; many were paired with the standard steel bracelet.

The integrated bracelet design is what makes the watch so divisive; people either love it or hate it. The construction is very robust and does not stretch easily. Early bracelets use a split-pin system, while later models employ a pin-and-collar system. Bracelet links for both the mid- and full-size model are the same, only the endpieces are different. Omega did not offer any strap options for the Pre-Bond. 

The bracelet features a deployment clasp with a locking mechanism and a diver’s extension. Early models have a single-locking clasp, while later models use a double-locking mechanism which also secures the diving extension. Initially, the clasp featured a small insert with the Omega logo and text, available in either steel or solid gold. However, as the insert was prone to falling out, it was later removed.

Bracelet and clasp variations of the Omega Seamaster 200M Pre-Bond.

Three Different Pre-Bond Casebacks

As with other parts of the Pre-Bond, the caseback also went through several iterations. The earliest models feature a two-piece construction with an outer retaining ring and a central disc. The disc is plain, with only ‘Seamaster’ engraved. On the automatic version, the ring is flat to provide sufficient space for the movement, while on the quartz version it's concave.

The next iteration added the hippocampus ‘Seamonster’ logo while retaining the two-piece construction. Later, the caseback was updated to a one-piece design, also featuring the Seamaster logo on the back.

Different types of casebacks on the Omega Seamaster 200M Pre-Bond.

Pre-Bond Crowns: Lobed versus Ribbed

Early models feature a six-sided, lobed, screw-down crown with the Omega logo. Later models have a ribbed screw-down crown, also bearing the Omega logo. From our experience, the winding thread on the crown is a weak point of the Seamaster 200M. Many crowns were updated from lobed to ribbed during servicing. Various online sources suggest that the crown was changed somewhere in 1989. In the illustration of the three types of caseback, both crown versions can be seen as well.

Two Styles of Pre-Bond Hands

Just like the crown, the hands have early and later versions, which are believed to have changed around 1989. The Seamaster 200M was introduced with Mercedes-style hands, similar to those used by Rolex. Chronopedia states: “Mercedes-style hands are not as popular with Omega collectors (given the Rolex Submariner connection), and many watches will have had them replaced.” The replacement hands are the style Omega introduced for the Pre-Bond after 1989: the sword hands. Our experience suggests the opposite. Mercedes hands are more popular, as they are iconic and the Pre-Bond was originally introduced with them. Steel hands were fitted to versions with a black bezel and white lettering, while gold hands were paired with a bezel featuring gold lettering.

All original hands are tritium-lumed and will yellow with age. They are prone to lume rot, and the colour of the lume often does not match the lume on the dial. Modern replacement hands use Super-LumiNova and do not decay, but will be noticeable due to the colour differences compared to the lume in the markers.

Mercedes hands, sword hands, and Super-LumiNova hands on the Pre-Bond.

References and Serial Numbers of the Pre-Bond

The reference of a model depends on its size, dial and bezel colour, movement, and bracelet. The references for the Pre-Bond follow the nine-digit MAPICS reference number system (XY.123.4567) used by Omega from 1970 to 2007. References were updated throughout the production period. References ending in .104x are the earliest, while those ending in .106x are the most recent (and most common). The references ending in .105x appear to be transitional and are much less common.

The prefixes ST (stainless steel), DR (stainless steel with a gold bezel), and DB (stainless steel with a gold bezel and a steel/gold bracelet) are used to complete the MAPICS reference. These prefixes are used for parts and in catalogues but cannot be found on the watch itself. Official suffixes to the reference are .300 for a black dial and .200 for a champagne dial, although this distinction isn't used anywhere. The PIC reference format (1988–2007, format XXXX.YY.ZZ) was also used in catalogues and on warranty papers, but is not commonly seen. For example, 2850.50.00 refers to a mid-size, quartz, steel Seamaster Pre-Bond.

Early Pre-Bonds have a serial number located on the inside of the caseback, printed in ink. The ink is easily erased, for example during ultrasonic cleaning of the caseback. Later serial numbers are engraved on the back of a lug. Of all Pre-Bond watches we had the earliest example has a serial number starting with 50 (1986), while the highest serial starts with 55 (1995). Our sample also indicates the majority of Pre-Bonds were produced around 1991, with serials starting with 53. Interestingly, serial numbering for automatic Pre-Bonds appears very inconsistent, with serials starting as low as 49.

Omega Seamaster 200M Pre-Bond caseback with inked serial and engraved serial.

Full Set: Box and Papers of the Pre-Bond

Most Pre-Bond watches came in a grey “Significant Moments” box, which was the standard box at the time. The outer box is white and comes in two sizes. The first size fits the grey inner box perfectly, while the second is slightly larger and features an insert to create a snug fit for the inner box. The outer box may have “Significant Moments” printed in red, but it can also be plain.

The warranty card is a typical hard plastic, credit card-sized card with the words “International Warranty” at the top. Early Pre-Bond watches may have come with an older-style red paper booklet as a warranty card. There is also an alternative to the standard card: a soft plastic credit card with the words “Guarantee Card” printed in red at the top, which appears to be country- or region-specific. The set also includes a grey folding card holder that matches the box.

Other accessories that may be included are a manual, an “Agents in the World” booklet, a “World Service” booklet, and a hang tag bearing the watch’s reference and serial number.

Box, papers and accesoires belonging to the Omega Seamaster 200M Pre-Bond.

Buying and Servicing a Pre-Bond

Surprisingly, the first piece of advice is not to send your Pre-Bond to an Omega service centre for servicing. Instead, have it done by a local, Omega-certified watchmaker who can order the correct parts from Omega. Alternatively, an independent watchmaker may help reduce costs if no parts are required.

The Omega service centre has access to most parts, including both older and updated versions. For example, both crown variants, both clasp variations, and both handsets (with Super-LumiNova) are available. However, this does not necessarily mean that replacement parts will be kept consistent with the original components, nor will they typically ask which parts you prefer. If you have a Pre-Bond with an ink serial, it's also not recommended to send it to a service centre, as there is a high risk that it could be erased during cleaning.

When considering a purchase, it's important to be aware of potential issues with the crown of the Seamaster 200M. The threading for screwing down the crown is arguably the weakest part of the watch. The tube is welded into the case and must be drilled out if the internal threads fail. Omega has updated this component to a screw-in tube, so in order to replace it the case must be tapped. Not all watchmakers have experience with this process, or are willing to carry it out. As a side note, the lobed crown uses a different tube from the ribbed crown.

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Important Notes about the Pre-Bond

In the past, there has been considerable debate about the originality of parts on Pre-Bond models. First and foremost, it is important to note that there is no definitive date or year that marks a clear crossover point for any of the parts that got updated. Changes began in 1988 with movement updates, and other components were gradually revised in the years that followed. Assessing originality therefore relies on drawing logical conclusions.

Based on our sample of over 130 Pre-Bond watches, we can draw several assumptions and conclusions. While these may not be relevant to the general public, they are of interest to enthusiasts and worth presenting online:

• Automatic Pre-Bond models show considerable inconsistency in serial numbers and parts usage.
• Full-size models appear to have received updates at similar times to mid-size models.
• Some cases and other parts may be marked “Made in Italy”.
• Serial numbers starting with 51 already feature the cal. 1438 movement. Therefore, cal. 1441 was only used in very early models, possibly for as little as one production year.
• The caseback was updated from a disc with a retaining ring to a single-piece design between serials 53351xxx and 53356xxx.
• The bracelet was updated from a single-locking to a double-locking clasp between serials 5339xxxx and 5355xxxx.
• References ending in .104x typically feature a lobed crown, Mercedes hands, a single clasp, and a caseback with a retaining ring.
• References ending in .104x can also have serial numbers starting with 53, which does not align with the general timeline.
• References ending in .105x are relatively rare and show inconsistency in parts usage.
• References ending in .106x, starting around serial 5316xxxx, always have an engraved serial number, a ribbed crown, and sword hands.
• Bracelets with a single-locking clasp were updated from split pins to a pin-and-collar system. Therefore, bracelets with a double-locking clasp will always use a pin-and-collar system.
• The lobed crown was phased out before sword hands were introduced.
• I have not been able to confirm claimed prefixes DB and DR, as they should be for pink gold. For example, DA is a more correct prefix.

Summarising the Seamaster 200M Pre-Bond 

The Pre-Bond Seamaster 200M remains a fascinating chapter in Omega’s history, where variation is the rule rather than the exception. Differences in handsets, crowns, casebacks, movements, and bracelets can overlap in ways that challenge the idea of strict “correctness”. Ultimately, if you're searching for a Pre-Bond, it comes down to personal requirements and preferences. With the help of this guide, you should be able to buy with confidence. Our collection is regularly updated with Pre-Bond watches, subscribe to our newsletter to receive stock alerts, and you'll be the first to know!

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