Omega Seamaster 300 Seamaster 300 Master Co-Axial Stainless Steel / Black / Bracelet
Reference 233.30.41.21.01.001
About this watch
The Omega Seamaster 300 Master Co-Axial is a masterpiece that blends luxury with functionality. Its stunning design, robust movement, and impressive features make it a worthy investment for anyone looking to own a piece of horological history. With a water resistance of 300 meters, it’s designed for serious diving activities, while its comfortable fit and stylish design make it suitable for everyday wear. The watch features a 41mm round stainless steel case, black dial with stick and dot indexes, and a rotating bezel with a 0-60 scale. Protected by a sapphire crystal, the watch is resistant to scratches. At the heart of the Seamaster 300 is the Omega caliber 8400 movement, which incorporates the Co-Axial escapement for enhanced precision and stability.
Key Features
- 41mm round stainless steel case
- Black dial with stick and dot indexes
- Rotating bezel with 0-60 scale
- Sapphire crystal protection
- Omega caliber 8400 movement
- Co-Axial escapement for precision and stability
- 300m water resistance
Specifications
- Brand
- Omega
- Family
- Seamaster 300
- Model
- Seamaster 300 Master Co-Axial Stainless Steel / Black / Bracelet
- Reference
- 233.30.41.21.01.001
- Movement
- 8400
- Movement Features
-
- Hours, Minutes, Seconds
- Chronometer, Co-Axial Escapement
- Case
- Stainless Steel 41mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] Omega Seamaster 300M](https://external-preview.redd.it/GDOzARdnntCCjEnTwJAE6J0xiAwkNUixKIX98T1Movw.jpeg?auto=webp&s=003d8878a8cf532fb5f86b7b7a500f836f95dee3)
Omega Seamaster 300M
A mint-condition Omega Seamaster 300M, complete with full box and papers.
- Condition: mint
- Status: full box and papers
![[WTS] Omega Seamaster 300M – White Wave Dial – Full Kit – $3999](https://external-preview.redd.it/k-O1uhrW6PJ8kvKp1i0W4uyqolLyv_szQOEGzMVdnxs.jpeg?auto=webp&s=584667e39ac7ac31e8b0af0658040d4c63e0e60e)
Omega Seamaster 300M – White Wave Dial – Full Kit – $3999
This Omega Seamaster Diver 300M features a white ceramic wave dial and black ceramic bezel in a 42mm stainless steel case with screw-down crown, helium escape valve, and 300m water resistance. It is powered by the Co-Axial Master Chronometer Caliber 8800.
- Condition: Great pre-owned condition
- Bracelet condition: hairlines consistent with use
- Crystal condition: flawless
- Bezel condition: flawless
(SOLD) Omega Seamaster 300M | 210.62.44.20.01.00 - Full Set
The Omega Seamaster 300M is a stainless steel automatic watch with a date display and water resistance of up to 300m.
- Status: (SOLD)

Omega Seamaster 300M - Black Aluminum - 210.30.42.20.01.010 ( new / 2025 )
This Omega Seamaster 300M features a 42mm stainless steel case with a black aluminum dial and mesh bracelet, powered by the Master Co-Axial Movement.
- Condition: Brand new
- Case size: 42mm
- Movement: 8806 Master Co-Axial

Omega Seamaster 300M - Summer Blue - 42mm - 210.30.42.20.03.003 ( new / 2024 )
This Omega Seamaster 300M 42mm features a Summer Blue dial on a stainless steel bracelet, powered by the Master Co-Axial movement.
- Condition: Brand new
- Case size: 42mm
- Movement type: Master Co-Axial

Omega Seamaster 300M | 210.62.44.20.01.00 - Full Set
A black ceramic and 18K gold Omega Seamaster 300M with a wave dial, measuring 43.5mm in diameter.
- Condition: Very Good (VG)
- Case size: 43.5mm
- Material: Black Ceramic and 18K Gold

Omega Seamaster 300M - 210.32.42.20.03.001
This Omega Seamaster 300M is a high-end diving watch with a 42mm case size and 300m water resistance rating. It features a very good condition, minor-wear-only case with perfect front and back sapphire crystals.
- Condition: Very good condition
- Case Size: 42mm
- Water Resistance Rating: 300m (1000 ft.)
- Depth Rating: 300m depth rating

Omega Seamaster 300M - Summer Blue - 42mm - 210.30.42.20.03.003 ( mint )
Up for sale is a mint condition Omega Seamaster 300M 42mm Summer Blue Dial on Bracelet, complete with all boxes, papers, booklets, hang tag and Omega Warranty Card.
- Condition: Mint Condition
- Case size: 42mm
- Movement type: 8800 Master Co-Axial
- Shipping cost international: 150

Omega Seamaster 300M Black Black - Diver - 210.92.44.20.01.003 ( mint )
This Omega Seamaster 300 is a black ceramic diver's watch with a wave dial, featuring a 43.5mm case and the Master Co-Axial movement. It comes with all original boxes and papers.
- Condition: Mint Condition
- Case material: Black Ceramic
- Movement: 8806 Master Co-Axial Movement
- Size: 43.5mm diameter