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Omega Seamaster 300 watches

The Omega Seamaster 300 family covers 14 models and 28 references, with case sizes from 39 mm to 41 mm.

14 models · 28 references

Speedmaster MoonwatchSeamaster Diver 300MSeamaster Planet OceanSpeedmaster Broad Arrow
Filters

Collections

  • Speedmaster Moonwatch48
  • Seamaster Diver 300M145
  • Seamaster Planet Ocean128
  • Speedmaster Broad Arrow38
  • Speedmaster Reduced38
  • Seamaster 120M15
  • Seamaster 30014
  • Speedmaster '5710
Show all 16
  • Speedmaster Chronoscope7
  • Seamaster PloProf5
  • Speedmaster Dark Side of the Moon5
  • Speedmaster First Omega in Space4
  • Seamaster Bullhead2
  • Speedmaster Pilot1
  • More Seamaster models6
  • Speedmaster Automatic and Quartz102
Size
Case material
Dial colour
Movement (calibre)
Water resistance

14 models

  • Omega Seamaster 300 Master Chronometer 234.30.41.21, reference 234.30.41.21.01.001, black dial, stainless steel case
    OmegaSeamaster 300 Master Chronometer 234.30.41.21bracelet: steel3 references41 mm
  • Omega Seamaster 300 Master Co-Axial 233.60.41.21, reference 233.60.41.21.01.001, black dial, rose gold case
    OmegaSeamaster 300 Master Co-Axial 233.60.41.21black dial3 references41 mm
  • Omega Seamaster 300 Master Co-Axial 233.62.41.21, reference 233.62.41.21.01.001, black dial, yellow gold case
    OmegaSeamaster 300 Master Co-Axial 233.62.41.21black dial3 references41 mm
  • Omega Seamaster 300 Co-Axial Master Chronometer 234.63.41.21, reference 234.63.41.21.99.001, green dial, yellow gold case
    OmegaSeamaster 300 Co-Axial Master Chronometer 234.63.41.21yellow gold case2 references41 mm
  • Omega Seamaster 300 Co-Axial Master Chronometer 234.93.41.21, reference 234.93.41.21.99.001, green dial, platinum case
    OmegaSeamaster 300 Co-Axial Master Chronometer 234.93.41.21platinum case2 references41 mm
  • Omega Seamaster 300 Master Chronometer 234.32.41.21, reference 234.32.41.21.01.001, black dial, stainless steel case
    OmegaSeamaster 300 Master Chronometer 234.32.41.21234.32.41.21.01.0012 references41 mm
  • Omega Seamaster 300 Master Co-Axial 233.20.41.21, reference 233.20.41.21.01.001, black dial, stainless steel and rose gold case
    OmegaSeamaster 300 Master Co-Axial 233.20.41.21black dial2 references41 mm
  • Omega Seamaster 300 Master Co-Axial 233.22.41.21, reference 233.22.41.21.01.001, black dial, stainless steel and yellow gold case
    OmegaSeamaster 300 Master Co-Axial 233.22.41.21black dial2 references41 mm
  • Omega Seamaster 300 Master Co-Axial 233.32.41.21, reference 233.32.41.21.01.001, black dial, stainless steel case
    OmegaSeamaster 300 Master Co-Axial 233.32.41.21black dial2 references41 mm
  • Omega Seamaster 300 Master Co-Axial 233.90.41.21, reference 233.90.41.21.03.001, blue dial, titanium case
    OmegaSeamaster 300 Master Co-Axial 233.90.41.21blue dial2 references41 mm
  • Omega Seamaster 300 Master Co-Axial 234.10.39.20, reference 234.10.39.20.01.001, black dial, stainless steel case
    OmegaSeamaster 300 Master Co-Axial 234.10.39.20black dial2 references39 mm
  • Omega Seamaster 300 Master Co-Axial 233.30.41.21, reference 233.30.41.21.01.001, black dial, stainless steel case
    OmegaSeamaster 300 Master Co-Axial 233.30.41.21black dial1 reference41 mm
  • Omega Seamaster 300 Master Co-Axial 233.92.41.21, reference 233.92.41.21.03.001, blue dial, titanium case
    OmegaSeamaster 300 Master Co-Axial 233.92.41.21blue dial1 reference41 mm
  • Omega Seamaster 300 Master Co-Axial 233.93.41.21, reference 233.93.41.21.03.001, blue dial, platinum case
    OmegaSeamaster 300 Master Co-Axial 233.93.41.21blue dial1 reference41 mm

About the Omega Seamaster 300

Omega introduced the Seamaster 300 in 1957, and the brand describes it as its first professional divers' watch. Omega refers to the 1957 original as a 'trilogy' model. The current Seamaster 300 sits among Omega's heritage models as a vintage inspired design, with the distinctive Seamaster 300 dial of triangular hour markers and large Arabic numerals, and the latest models reintroduce the lollipop hand. Every model in today's catalogue uses a 41 mm case, offered in stainless steel, Bronze Gold, yellow gold and platinum, with automatic Co-Axial Master Chronometer calibres 8912 or 8913.

Sources: Seamaster 300 catalogue, Omega

Size

Browse by size

  • 40 to 42 mm 13

Movements

Key movements

  • Omega calibre 8400 11 references
  • Omega calibre 8401 6 references
  • Omega calibre 8912 5 references
  • Omega calibre 8913 4 references
  • Omega calibre 8806 2 references

Questions

Omega Seamaster 300 questions

How many Omega Seamaster 300 watches are on Watchnik?

Watchnik lists 14 Omega Seamaster 300 models and 28 references.

What case sizes do Omega Seamaster 300 watches come in?

Recorded case diameters run from 39 mm to 41 mm across the 28 references.

Which movement is used most in Omega Seamaster 300 watches?

The Omega calibre 8400 appears in the most references, 11 of them.

Sources

Sources and last updated

Specifications are compiled from watch database records and manufacturer information; missing values are shown as not yet recorded, never estimated. Data last updated 29 September 2026. How we source our data

Watchnik

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