Legendary NovemberSee the selection →

Model guideOmega

Omega Seamaster

Omega Seamaster in brief

The Seamaster was introduced in 1948, in Omega's 100th year, as a waterproof everyday watch. Over time it grew into the brand's broadest family, covering many lines from professional dive watches to elegant everyday watches.

Its best-known member is the Diver 300M, which arrived in 1993: it is recognized by its wave-pattern dial, helium escape valve and unidirectional ceramic bezel. The Planet Ocean for deeper diving and the Aqua Terra, with its horizontal-lined dial for everyday and dressy use, complete the family.

Omega Seamaster models in stock Ask about this model on WhatsApp

Common references and sizes

The Diver 300M is 42 mm (e.g. 210.30.42.20.01.001), the Planet Ocean 600M is 43.5 and 39.5 mm, the Aqua Terra 150M is 38 and 41 mm, and the classic Seamaster 300 is commonly seen with a 41 mm case.

Sample references currently in stock

  • 210.20.42.20.01.001
  • 210.20.42.20.01.002
  • 210.20.42.20.03.001
  • 210.20.42.20.03.002
  • 210.20.44.51.01.001
  • 210.20.44.51.03.001
  • 210.22.42.20.01.001
  • 210.22.42.20.01.002

Which Omega Seamaster suits you?

Case sizes and material options based on the models in the catalog. Tap a size to see the models in that size.

Case size

  • Small (34 mm and under)

    34 models

    Looks elegant on slim wrists and under a shirt cuff; classic ladies' sizes fall in this group too.

    30 mm1734 mm17

  • Medium (35–39 mm)

    37 models

    The classic size: balanced on most wrists, suited to both everyday and dressy wear.

    37 mm138 mm3339.5 mm3

  • Large (40–42 mm)

    92 models

    Today's most common men's size; noticeable on the wrist without being excessive.

    41 mm3742 mm55

  • Extra large (43 mm and over)

    38 models

    Demands a strong presence; stands out on broad wrists and in sporty use.

    43 mm843.5 mm744 mm1145.5 mm1046.75 mm155 x 45 mm1
Which size fits your wrist? Wrist size guide

Material

  • Steel

    110 models

    The most durable and understated option for everyday wear.

  • Gold

    46 models

    Yellow, rose or white gold: a more formal look through its weight and color.

  • Steel and gold

    28 models

    The durability of steel with the warmth of gold; classic and eye-catching.

  • Ceramic, titanium, carbon

    13 models

    Light, contemporary materials; common in sporty and modern designs.

  • Platinum

    4 models

    The heaviest and rarest precious metal; a quiet luxury with its understated look.

Omega Seamaster models in stock

201 models in stock now

All Omega Seamaster models (201)
Omega Seamaster Diver 300M Co-Axial Master Chronometer 42 mm – Steel on Steel, Black Dial

Omega

Seamaster Diver 300M Co-Axial Master Chronometer 42 mm – Steel on Steel, Black Dial

$1,300

210.30.42.20.01.001

View model
Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41 mm – Steel on Rubber Strap, Blue Dial

Omega

Seamaster Aqua Terra 150M Co-Axial Master Chronometer 41 mm – Steel on Rubber Strap, Blue Dial

$1,300

220.12.41.21.03.007

View model
Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 38 mm – Steel on Steel, Black Dial

Omega

Seamaster Aqua Terra 150M Co-Axial Master Chronometer 38 mm – Steel on Steel, Black Dial

$1,300

220.10.38.20.01.004

View model
Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 30 mm – Moonshine Gold on Moonshine Gold, Green Dial

Omega

Seamaster Aqua Terra 150M Co-Axial Master Chronometer 30 mm – Moonshine Gold on Moonshine Gold, Green Dial

$1,300

220.55.30.20.60.001

View model
Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 34 mm – Canopus Gold on Alligator, Silver Dial

Omega

Seamaster Aqua Terra 150M Co-Axial Master Chronometer 34 mm – Canopus Gold on Alligator, Silver Dial

$1,300

220.58.34.20.99.007

View model
Omega Seamaster Diver 300M Co-Axial Master Chronometer Chronograph 44 mm – Sedna Gold on Rubber Strap, Black Dial

Omega

Seamaster Diver 300M Co-Axial Master Chronometer Chronograph 44 mm – Sedna Gold on Rubber Strap, Black Dial

$1,300

210.62.44.51.01.001

View model
Omega Seamaster Planet Ocean 6000M Co-Axial Master Chronometer 45.5 mm – O-MEGASTEEL on O-MEGASTEEL, Blue Dial

Omega

Seamaster Planet Ocean 6000M Co-Axial Master Chronometer 45.5 mm – O-MEGASTEEL on O-MEGASTEEL, Blue Dial

$1,300

215.30.46.21.03.001

View model
Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer GMT Worldtimer 43 mm – Steel on Rubber Strap, Blue Dial

Omega

Seamaster Aqua Terra 150M Co-Axial Master Chronometer GMT Worldtimer 43 mm – Steel on Rubber Strap, Blue Dial

$1,300

220.12.43.22.03.001

View model
Omega Seamaster Diver 300M Co-Axial Master Chronometer 43.5 mm – Black Ceramic on Rubber Strap, Black Dial

Omega

Seamaster Diver 300M Co-Axial Master Chronometer 43.5 mm – Black Ceramic on Rubber Strap, Black Dial

$1,300

210.62.44.20.01.001

View model
Omega Seamaster Boutique Editions Co-Axial Master Chronometer 39.5 mm – Steel on Leather Strap, Red Dial

Omega

Seamaster Boutique Editions Co-Axial Master Chronometer 39.5 mm – Steel on Leather Strap, Red Dial

$1,300

511.13.40.20.11.002

View model
Omega Seamaster 37 mm Co-Axial Master Chronometer – Moonshine Gold on Alligator, White Dial

Omega

Seamaster 37 mm Co-Axial Master Chronometer – Moonshine Gold on Alligator, White Dial

$1,300

522.53.37.20.04.001

View model
Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 45 mm – O-MEGASTEEL on Rubber Strap, Blue Dial

Omega

Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 45 mm – O-MEGASTEEL on Rubber Strap, Blue Dial

$1,300

227.32.55.21.03.001

View model
All Omega Seamaster models (201)

Frequently asked questions

Diver 300M or Aqua Terra?

The Diver 300M is sporty and dive-ready; it stands out with its rotating bezel and wave dial. The Aqua Terra is a plainer everyday watch that also suits a suit.

Do I need to touch the helium valve?

No. The valve is only for professional divers living in a pressure chamber; for everyday use it simply stays closed.

Is the Planet Ocean large?

The 43.5 mm models suit broad wrists; a 39.5 mm version exists for those who want a more compact dive watch.

Which case sizes does the Omega Seamaster come in?

The catalog currently has case sizes of 30, 34, 37, 38, 39.5, 41, 42, 43, 43.5, 44, 45.5, 46.75, 55 mm. Our wrist size guide makes it easy to see which one fits your wrist.

Can I take a closer look at Omega Seamaster models before buying?

Yes. You can message us on WhatsApp for extra photos and a video of the model, or book a live video presentation to examine the watch in real time.