Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Black / Bracelet
Reference 210.30.42.20.01.001
About this watch
The Omega Seamaster Diver 300M Master Co-Axial 42 is a masterpiece of watchmaking, blending luxury and functionality in a stunning package. Crafted from premium materials, this timepiece boasts exceptional build quality, Master Chronometer certification for accuracy, and an impressive water resistance of 300 meters. Its versatile design seamlessly transitions from casual to formal wear, while the comfortable fit with an adjustable bracelet ensures all-day wearability. This watch is not just a statement piece; it's a testament to Omega's commitment to excellence.
Key Features
- 42mm round case made from stainless steel
- Black ceramic bezel with 0-60 scale
- Sapphire crystal glass for added protection
- Master Chronometer certification for accuracy and performance
- Water resistance of 300 meters (1,000 feet)
- Self-winding movement powered by Omega caliber 8800
- Co-Axial escapement with reduced friction and increased accuracy
Specifications
- Brand
- Omega
- Family
- Seamaster Diver 300m
- Model
- Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Black / Bracelet
- Reference
- 210.30.42.20.01.001
- Movement
- 8800
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer, Co-Axial Escapement
- Case
- 42mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[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 professional chronometer](https://preview.redd.it/l8mh5udcnivf1.jpg?width=640&crop=smart&auto=webp&s=b4e30bb003123ecb5c4c0b30a888a7bcd128b962)
Omega seamaster professional chronometer
This Omega Seamaster Professional 300m Diver is a 42mm watch with a black ceramic dial featuring laser-etched waves and Super-Luminova hands and indices.
- Condition: Excellent
- Size: 42mm diameter
- Depth rating: 300m
![[WTS] Omega Seamaster Professional 300M 42mm Black Wave Dial Full Set](https://preview.redd.it/s60smz7b54vf1.jpg?width=640&crop=smart&auto=webp&s=d6108fc22f9dba1528bde4f0c7273a7b8c8dd44b)
Omega Seamaster Professional 300M 42mm Black Wave Dial Full Set
For sale is my Omega Seamaster Professional Diver 300M 42mm in black with a black wave dial.
- Condition: pristine
- Case size: 42mm diameter
- Water resistance: 300m depth rating

Omega Seamaster 300 - Black Wave Dial - 210.30.42.20.01.001 ( new / 2025 )
This Omega Seamaster 300 is a brand new timepiece with a black wave dial, featuring a 42mm stainless steel case and the Master Co-Axial Movement. It comes complete with all original boxes, papers, booklets, hang tag, and an Omega warranty card dated January 2025.
- Condition: Brand new
- Case Size: 42mm
- Movement: 8800 Master Co-Axial
![[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’s 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)
![[WTS] OMEGA Seamaster Diver 300M Silver |ref. 210.30.42.20.06.002 | 2025 Complete Set](https://preview.redd.it/988biz7x9bvf1.jpeg?auto=webp&s=cdd9a5178b297f158cdf69a0463e7f4fd4ae539b)
OMEGA Seamaster Diver 300M Silver |ref. 210.30.42.20.06.002 | 2025 Complete Set
This OMEGA Seamaster Diver 300M Silver is a high-end watch from the 2025 collection, featuring a complete set of accessories and documentation. The watch itself is in excellent condition with minor wear, including lighter scratches and hairlines.
- Condition: Excellent Preowned, minor wear in form of lighter scratches/hairlines
- Box: Double Boxed
- Papers: Pictograms x Master Chronometer Cert, Instruction Book, 2025 Warranty Card
- Crystals: Both crystals clean
![[WTS] OMEGA Seamaster Diver 300m Chronograph 44mm Box & Papers - 210.32.44.51.01.001](https://preview.redd.it/eq618gaj55vf1.jpg?width=640&crop=smart&auto=webp&s=6e96922565aabc2a6f0c503d1edf94d028f63aea)
OMEGA Seamaster Diver 300m Chronograph 44mm Box & Papers - 210.32.44.51.01.001
A Seamaster Diver 300m Chronograph that combines a professional dive watch and chronograph functionality in one modern package.
- Condition: Very good, used condition with minor wear on the case
- Movement: Omega's Calibre 9900, METAS-certified Master Chronometer with co-axial escapement and 60-hour power reserve
- Case size: 44mm stainless steel
- Water resistance: 300m