Seamaster Diver 300M Co-Axial 41 212.30.41.20 Reference 212. 30. 41. 20. 01. 003
Seamaster Diver 300M Co-Axial 41 Stainless Steel / Black / Bracelet / Ceramic
Omega sold this steel Seamaster Diver 300M until the 2018 redesign replaced it. It runs on the calibre 2500, an ETA-based movement that Omega fitted with its co-axial escapement, where the current watch has the in-house Master Chronometer calibre 8800.
The ceramic versions pair a polished ceramic bezel with a plain lacquered dial in black or blue. Earlier Diver 300M dials carried a wave pattern, and the waves only came back, laser-engraved, with the redesign. The date sits at three, and the back is solid: Omega only gave the Diver 300M a sapphire back with the 2018 watch.
The case is a millimetre narrower than the current one and a little lower, so on a smaller wrist this is the Diver 300M that sits closer to the arm.
Overview
The Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20 comes in a 41 mm steel case. Its references use 2 movements: Omega calibre 2500 and Omega calibre 2507. It is water resistant to 300 metres. Our database lists 6 references of the Seamaster Diver 300M Co-Axial 41 212.30.41.20, which differ in dial colour (black, blue and white).
- Case diameter
- 41 mm
- 13.07 mm thick
- Movement
- Calibre 2500
- Water resistance
- 300 m
- Power reserve
- 48 h
Specifications
Specifications from Omega and WatchBase. Last checked . SourcesCase
Dial
- Colour
- Black
Movement
- Calibre
- Omega 2500
- Type
- Automatic
- Power reserve
- 48 h
Bracelet or strap
- Bracelet or strap
- Bracelet: Steel
- Clasp
- Foldover clasp with diver extension
Not yet recorded: lug-to-lug, case back, shape, indexes, hands, functions, years.
Other versions of the Seamaster Diver 300M Co-Axial 41 212.30.41.20
The Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20 covers 6 references, with a 41 mm case. They use 2 different movements.
- Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20, reference 212.

30. 41. 20. 01. 003 - Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20, reference 212.

30. 41. 20. 01. 001 - Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20, reference 212.

30. 41. 20. 01. 002 - Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20, reference 212.

30. 41. 20. 01. 005 - Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20, reference 212.

30. 41. 20. 03. 001 - Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20, reference 212.

30. 41. 20. 04. 001
Compare all 6 references in a table
| Reference | Dial | Case | Size | Produced |
|---|---|---|---|---|
| 212.30.41.20.01.001 | Black | Steel | 41 mm | – |
| 212.30.41.20.01.002 | Black | Steel | 41 mm | – |
| 212.30.41.20.01.003 | Black | Steel | 41 mm | – |
| 212.30.41.20.01.005 | Black | Steel | 41 mm | – |
| 212.30.41.20.03.001 | Blue | Steel | 41 mm | – |
| 212.30.41.20.04.001 | White | Steel | 41 mm | – |
Seamaster Diver 300M Co-Axial 41 212.30.41.20 questions
What size is the Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20?
The Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20 has a 41 mm case.
What movement does the Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20 use?
Its references use 2 movements: Omega calibre 2500, Omega calibre 2507.
What is the Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20 case made of?
The case is steel.
Is the Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20 water resistant?
It is rated to 300 m.
How many Omega Seamaster Diver 300M Co-Axial 41 212.30.41.20 references are there?
Our database lists 6 references.
About the Omega Seamaster Diver 300M
Omega introduced the Seamaster Professional Diver 300M in 1993. Omega first appeared on the wrist of James Bond in GoldenEye in 1995, with a Diver 300M, and 007 editions remain part of the range. Defining features include a helium escape valve, 300 metres of water resistance and a wave-pattern dial, which on the current blue-dial 42mm model is laser-engraved into ceramic. The present collection includes 42mm models with ceramic bezels and the self-winding Co-Axial Master Chronometer calibre 8800, alongside 43.5mm versions, two-tone steel and gold references and other material variants.



