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] Omega Seamaster Diver 300m, 42mm, steel](https://external-preview.redd.it/Kb_3t5X40W_Y6trxAiSy7FAeztPKh-gM1CLOJ4D27PM.jpeg?auto=webp&s=65fe2b568ab34e7fa3342592e0e79ab48341db31)
Omega Seamaster Diver 300m, 42mm, steel
Selling my Omega Seamaster Diver 300m, 42mm, steel watch that I bought in 2022 in Krakow, Poland. The watch has original papers and is in excellent condition.
- Condition: Excellent condition
- Original Papers: true
- Box: no box included
- Straps: Bark&Jack NATO strap and Omega tool to swap straps
![[WTS][US] Omega Seamaster SMP300 - Black Dial - 210.30.42.20.01.001 - On Upgraded Mesh Bracelet](https://preview.redd.it/41fqsbaw7b6f1.jpg?width=640&crop=smart&auto=webp&s=321f2659ff78d88d844edeaf2ebb2c95e70dff0e)
[US] Omega Seamaster SMP300 - Black Dial - 210.30.42.20.01.001 - On Upgraded Mesh Bracelet
This Omega Seamaster SMP300 features a black dial and is equipped with a mesh bracelet.
- Condition: Fantastic condition with minor hairlines
- Bracelet type: Mesh

Omega Seamaster 300 Co‑Axial 42 mm, Black, Ceramic Bezel, Steel, 210.30.42.20.01.001, Boxes and Papers. Warranty until 2027
A black Omega Seamaster 300 Co-Axial Master Chronometer watch in 42 mm size, featuring a polished ceramic bezel, laser-engraved waves, and a red highlighted Seamaster logo. The watch has excellent luminescence, keeps excellent timing, and great amplitude.
- Condition: Used with some wear from use, micro nicks, scratches, and scuffs on the case
- Case diameter: 42mm
- Thickness: 13.6mm
- Water resistance: 300m/1000ft

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 Green w/ Box & Papers + Additional Forstner Bracelets](https://external-preview.redd.it/Eh_wYdCnW34bVRAGoXdpGbIYCOEIKgEkuxqR5q_Abfg.jpeg?auto=webp&s=20b31440dac4c888dab218e35b445653164bc791)
Omega Seamaster Diver 300M Green w/ Box & Papers + Additional Forstner Bracelets
This Omega Seamaster Diver 300M in Green features a 42mm case diameter, 13.6mm thickness, and is water resistant to 300m/1,000ft. It comes with an Omega 8800 Co-Axial Master Chronometer movement and automatic winding.
- Condition: Great overall condition, minor scratches consistent with regular wear
- Case diameter: 42 mm
- Thickness: 13.6 mm
- Lug width: 20 mm
![[WTS] Omega Seamaster Diver 300M Ceramic and Sedna Gold – Full Set, Excellent Condition (2023 AD Purchase) 🌊](https://external-preview.redd.it/_S_LBL-Ia8It5C0WbvDRA_PgCuf3eNQAVIW1IJlV3s8.jpeg?auto=webp&s=57590fff305cbdde5fd108f72b7adf7bcc925e15)
Omega Seamaster Diver 300M Ceramic and Sedna Gold – Full Set, Excellent Condition (2023 AD Purchase) 🌊
The Omega Seamaster Diver 300M features a distinctive 18K Sedna gold and black ceramic construction, with a 44mm case diameter, black ceramic dial, and unidirectional rotating bezel.
- Condition: Excellent condition
- Case Size: 44mm
- Material Case: ceramic
- Dial Color: black
![[WTS] Omega Seamaster Diver 300M James Bond 60th Anniversary Blue Dial 42mm - 210.30.42.20.03.002](https://external-preview.redd.it/X144DarO_y97oirpRlSMjXLqa0__QBjyXdHDO2EJR9Y.jpeg?auto=webp&s=cfe65154aed1e43f3fd210eff1d7dc9b72a19124)
Omega Seamaster Diver 300M James Bond 60th Anniversary Blue Dial 42mm - 210.30.42.20.03.002
This Omega Seamaster Diver 300M is a James Bond 60th Anniversary edition watch featuring a blue dial and stainless steel case. It's running excellently and comes with its original warranty until July 2028.
- Condition: Mint, with very light signs of wear on clasp
- Original Msrp: 8800
- Material: Stainless Steel
- Size: 42mm diameter
![[WTS] Omega Seamaster Diver 300M – Ref. 210.22.42.20.01.002 – 2020 Full Set – Mint](https://preview.redd.it/hir8vns8we6f1.jpg?width=640&crop=smart&auto=webp&s=24121390807e1c6eda54553bf37b8d0c8a2ca14e)
Omega Seamaster Diver 300M – Ref. 210.22.42.20.01.002 – 2020 Full Set – Mint
This Omega Seamaster Diver 300M combines modern performance with timeless dive watch aesthetics, featuring a 42mm stainless steel and Sedna gold model with a striking black ceramic wave dial.
- Condition: Mint, extremely well kept
- Year: 2020
- Set: Complete with inner and outer box, warranty card, manuals, and hang tag
- Movement: Omega Co-Axial Master Chronometer Calibre 8800
![[WTS] Omega Seamaster Diver 300M Summer Blue 210.32.42.20.03.002 2024 Full Set - $4,595](https://preview.redd.it/9eegeteci36f1.jpg?width=640&crop=smart&auto=webp&s=2da13880c0272570d25aa453849c8f5af1b30ee3)
Omega Seamaster Diver 300M Summer Blue 210.32.42.20.03.002 2024 Full Set - $4,595
This Omega Seamaster Diver Summer Blue is a 2024 model, fully set and in excellent condition.
- Condition: Excellent condition with minimal signs of wear
- Year: 2024
- Warranty: 4 years remaining
- Contents: Watch,Inner & Outer Box,International Warranty Card,Pictograms Card,Master Chronometer Card,Card Holder,Operating Instructions Manual,Hang Tag,Receipt