This page is dedicated to one of the most iconic watches in dive watch history – the Omega Seamaster. Since 1957 this stunning timepiece has adourned the wrists of movie stars, celebrities, entrepeneurs, sports-stars and yes – even DIVERS.

All images are courtesy of Omega Watches

Birth of an Icon

Omega launched their first official dive watch in 1948 – the Omega Seamaster – a name now synonymous with quality and underwater reliability. The first models utilised their many years producing military grade watches with high levels of water resistancy – not normally found on other watches of that time.

Fast forward 9 years to 1957 and we have their first 300m version. The Seamaster had most definitely arrived and quickly established itself as the must have watch for professional divers. In 1963 Jacques Cousteau – a renowned oceanographer & diver – wore the Seamaster 300m. His entire team wore the watch throughout their Conshelf II experiments in the Red Sea – a very impressive endorsement indeed.

Summary range overview

Currently Omega have more than 50 different dive watch models in their Seamaster range. As far as genuine dive watches (200m or deeper) is concerned they have 4 primary model lines. The Seamaster Diver 300, the Seamaster 300 (rebirth of a classic model), the 600m certified Omega Seamaster Planet Ocean and finally the 1200m Omega Proplof.

Recognising different model lines

A glance at any of the current models should be time enough to determine which stable it belongs to. If BOTH hands have arrowhead pointers – it’s a Planet Ocean. If just the hour hand has the arrowhead it’s the Seamaster 300. If both hands are hollow, with a triangular luminous marker on the minute hand and round luminous marker on the hour hand, it’s a Seamaster Diver 300m. If it’s a Proplof … it’s obvious with it’s distinctive helium release valve.

Diver 300

Omega Diver 300m

Seamaster 300

Omega Seamaster 300m

Planet Ocean

Omega Planet Ocean

Proplof

Omega Ploprof 1200m

The Contemporary Seamaster Diver 300

Visit the OmegaWatches.com website and browse their curent “Diver” range. It’s an all inclusive range incorporating several case sizes – from 28mm to 43.5mm. Models are available with bracelets of metal, rubber and NATO style nylon straps. They come equipped with either mechanical automatic calibres or quartz (battery) movements. But one thing is the same across all models – they are undeniably Omega Seamaster Diver watches.

The model featured below is the Diver 300M – Omega Co‑Axial Master Chronometer with 43.5 mm case. With it’s skeleton case back you can see the stunning Omega Master Co-Axial calibre 8806

Diver 300m in 43.5mm case
Omega Master Co-Axial 8806 automatic movement

Available online now

Chronodivers.com is an affiliated partner of Amazon.com. Here’s our handpicked selection from their collection of Omega Diver 300 watches

Used / pre-worn models

Counterfeit warning – shoppers must make their own judgement to determine the authenticity of any watch before buying it – avoid buying a fake watch

UK – a selection of Omega Seamaster dive watches currently available from UK sellers

USA – a selection of Omega Seamaster dive watches currently available from USA sellers

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Seamaster 300 – rebirth of a classic

In 2014 Omega released a new version of the original Seamaster 300m. This new version has been upgraded to include Omega’s latest innovations and technology – while retaining the classic looks of the 1960’s version.

Presented in the perfect case size – 42mm – the Seamaster Master Co-Axial is certified to depths of 300m or a pressure of 30Bar – a true diver’s watch with no compromise and style by the bucket full.

Reborn- the Omega Seamastr Master Co-Axial 300

Glowing with Super-Luminova

Large triangular numeral markers and hands all encased in super bright Super-Luminova. The all important minute hand glows a different colour to all other hands and markings to help differentiate during essential dive timing in low light conditions

Super-Luminova coatings on hour markers, hands and bezel “0” position

Coaxial Movement

There’s no doubt the Seamaster impresses from the exterior – but it’s inside that the really beauty can be found. Powered by Omega’s Master Coaxial Calibres 8400, 8402 and 8800 movements (model dependent) – the Seamaster excels in mechanical chronometer accuracy.

Once fully wound from it’s automatic motion wound movement – the Seamaster will run for 60 hours. If the watch has been off the wrist for some time it can be boosted by manual winding without the need to pull out the crown (sometimes referred to as hacking)

Used / pre-worn models

Note – when listing this model online sellers sometimes erroneously call a “Seamaster Diver 300” a “Seamaster 300”. We try to filter out the wrong watches in this category but sometimes they do get in. Remember – the Seamaster 300 has an arrowhead on the hour hand but NOT on the the minute hand. If it’s got the hollow hands with luminous circle on the hour and triangle on the hour – it’s officially a Seamaster Diver 300.

If in doubt please refer to the official Omega website

Counterfeit warning – shoppers must make their own judgement to determine the authenticity of any watch before buying it – avoid buying a fake watch

UK – a selection of Omega Seamaster 300 watches currently available from UK sellers

USA – a selection of Omega Seamaster 300 watches currently available from USA sellers

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Omega Planet Ocean – our favourite

In our view – perfection – the Planet Ocean 600M with Co‑Axial Master Chronometer 43.5 mm

At ChronoDivers.com we do have a favourite – and that’s the Planet Ocean. Whether it’s the aesthetic beauty, the distinctive arrowhead hands or the mechanical wizardry of the Omega Master Chronometer calibre 8900 visible through the transparent caseback. We don’t know – probably a culmination of everything that make the Seamaster Planet Ocean one of the most desirable dive watches on the market.

Omega Master Co-Axial 8900 Calibre seen through the transparent caseback

Everything about the Planet Ocean is a blatant statement in quality and master craftsmanship. The watch is certified by The Swiss Federal Insitute of Metrology to Master Chronometer status. To achieve such an accolade it is subjected to 8 rigorous tests.

Available online now

Chronodivers.com is an affiliated partner of Amazon.com. Here’s a selection from their range of Omega Planet Ocean watches

Used / Pre-worn models

Note – when listing this model online sellers sometimes erroneously call a “Seamaster Diver 300” a “Seamaster Planet Ocean”. We try to filter these watches from this category but sometimes they still get listed. Remember – the Seamaster Planet Ocean has an arrowhead on BOTH the hour hand and the minute hand. If it’s got the hollow hands with luminous circle on the hour and triangle on the hour – it’s officially a Seamaster Diver 300. If it’s got the arrowhead on only the hour hand – it’s a Seamaster 300.

If in doubt please refer to the Omega website

Counterfeit warning – shoppers must make their own judgement to determine the authenticity of any watch before buying it – avoid buying a fake watch

UK – a selection of Omega Seamaster Planet Ocean watchescurrently available from UK sellers

USA – a selection of Omega Seamaster Planet Ocean watches
currently available from USA sellers

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Omega Proplof – 1970 to today

If extreme depth is an essential requirement then the watch that goes deeper than most is the Omega Proplof. The Proplof is a term adopted by Omega for their 1200m water resistant profesional divers watch. The watch’s name says it all – Proplof – is an abbreviation of the French for professional diver – plongeur professionnel.

The Omega Proplof 2016 model with titanium case and automatic helium escape valve

When first introduced in 1970 it was rated to 600m. The new version – released in 2016 – is rated to 1200m. Featuring a titanium with ceramic bezels (some models) and the OMEGA Co-Axial and Master Chronometer calibres. The new Omega Proplof assures it’s lucky owner of the highest levels of accuracy and reliability.

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