Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Blue / Bracelet
Reference 210.30.42.20.03.001
About this watch
The Omega Seamaster Diver 300M Master Co-Axial 42 is a masterpiece of watchmaking, boasting a robust 42mm stainless steel case, blue ceramic bezel with rotating 0-60 scale, and stunning blue dial with wave pattern. Protected by sapphire crystal, this timepiece showcases the intricate Omega caliber 8800 movement, featuring Co-Axial escapement and Master Chronometer certification for exceptional accuracy and resilience against magnetic fields up to 15,000 gauss.
Key Features
- 42mm stainless steel case
- Blue ceramic bezel with rotating 0-60 scale
- Stunning blue dial with wave pattern
- Sapphire crystal protection
- Omega caliber 8800 movement
- Co-Axial escapement
- Master Chronometer certification
- Water resistance up to 300 meters
Specifications
- Brand
- Omega
- Family
- Seamaster Diver 300m
- Model
- Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Blue / Bracelet
- Reference
- 210.30.42.20.03.001
- Movement
- 8800
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer, Co-Axial Escapement
- Case
- 42mm
- Dial Color
- Blue
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS] 馃殌 Omega Seamaster 300M Blue - $3950](https://preview.redd.it/gtidz2grfbvf1.jpg?width=640&crop=smart&auto=webp&s=f1bfb86c9512c7a53d1cc49ef9890a240236349c)
馃殌 Omega Seamaster 300M Blue - $3950
A solid dive watch with Omega's legendary reliability and style, featuring a blue dial and iconic design.
- Condition: great condition with minor signs of wear
- Case size: 42mm diameter
- Depth rating: 300m

Omega Seamaster Professional 300m Diver Blue Dial/Bezel
This Omega Seamaster Professional is a 42mm diver's watch with a blue ceramic dial and bezel, featuring an automatic movement with a 55-hour power reserve.
- Condition: Excellent
- Case size: 42mm diameter
- Thickness: 14mm
- Lug width: 20mm

Omega Seamaster 300M - Blue Dial - 210.30.42.20.03.001 (excellent / complete)
This Omega Seamaster 300M features a 42mm stainless steel case with a blue dial and bezel, powered by the Master Co-Axial Movement.
- Condition: Excellent / Complete Set
- Case size: 42mm diameter
- Movement type: Master Co-Axial

Omega Seamaster 300M - Blue Dial - 210.30.42.20.03.001 ( excellent / 2024 )
This Omega Seamaster 300 is a Master Chronometer with a 42mm stainless steel case, featuring a blue dial and bezel on a bracelet.
- Condition: Excellent
- Movement: 8800 Master Co-Axial Movement
- Case size: 42mm diameter
- Shipping options: Fedex Express within the US, International Shipping adds $150
Omega Seamaster 300M Blue 42MM - Ref 210.30.42.20.03.001 (2022 LIKE NEW COMPLETE)
A 42MM Omega Seamaster 300M Blue with all functions working properly and included accessories.
- Condition: Like new, worn less than a handful of times
- Box And Papers: Complete box and papers, dated May 2022
- Included Accessories: Outer sleeve, outer box, inner box, instruction manual, serialized hangtag, dust bag
![[WTS] 2025 BNIB Omega Seamaster Diver 300M Black 210.30.42.20.01.001 Full Set](https://preview.redd.it/4qf11au9grvf1.jpg?width=640&crop=smart&auto=webp&s=0e0636731ed65e497924ef7ccc3fac68e97bfc3f)
2025 BNIB Omega Seamaster Diver 300M Black 210.30.42.20.01.001 Full Set
2025 Omega Seamaster Diver 300M Black 42mm daily diver with a full set, brand new and dated Sept 2025.
- Condition: new, unsized, never worn
- Size: 42mm diameter
- Year: 2025
![[WTS] Omega Seamaster Diver 300M Black Ceramic 2024 Box And Papers 210.92.44.20.01.003](https://preview.redd.it/nm9mb4p2epvf1.png?auto=webp&s=dc9014af2a6e2f3649dc987229dae2c9fa1d63d4)
Omega Seamaster Diver 300M Black Ceramic 2024 Box And Papers 210.92.44.20.01.003
The Omega Seamaster Diver 300M Black Ceramic Ref. 210.92.44.20.01.003 is a bold and stealthy take on one of Omega鈥檚 most iconic dive watches, featuring a 43.5mm black ceramic case with a sleek, matte finish.
- Case material: black ceramic
- Diameter: 43.5mm
![[WTS] Omega Seamaster Diver 300M James Bond Full Steel Blue Dial (Full-Set/Mint)](https://preview.redd.it/vhdj2ggbukvf1.jpg?width=640&crop=smart&auto=webp&s=d6006b7aa01c887f5353d6415f70271efbdba834)
Omega Seamaster Diver 300M James Bond Full Steel Blue Dial (Full-Set/Mint)
This Omega Seamaster Diver 300M James Bond watch is a modern diver's watch directly tied to the iconic 007 legacy, featuring a full stainless steel case and a striking blue wavy dial.
- Condition: like new to unworn
- Case material: full stainless steel
- Bracelet type: steel mesh
- Band size: not specified
![[WTS] Omega Seamaster Diver 300M 210.32.42.20.01.001 2024](https://preview.redd.it/olp9jzavmbvf1.jpg?width=640&crop=smart&auto=webp&s=9a8b34b1ceab934cf879c6f430c684a21248d865)
Omega Seamaster Diver 300M 210.32.42.20.01.001 2024
A modern icon of precision and elegance, this Omega Seamaster Diver 300M features a black ceramic dial with laser-engraved wave pattern, unidirectional ceramic bezel, and helium escape valve. Measuring 42mm, it perfectly blends sport and style for everyday wear or ocean adventure.
- Condition: Mint condition
- Case size: 42mm
- Material: stainless steel
- Diameter: 40mm (bezel)