Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Summer Blue / Bracelet
Reference 210.30.42.20.03.003
About this watch
The Omega Seamaster Diver 300M Master Co-Axial 42 is a masterpiece of engineering and design, blending elegance with robust functionality. Its stunning summer blue dial features a gradient finish, adding depth and character to the watch face. The case is crafted from stainless steel and ceramic, built to withstand underwater adventures. A rotating bezel allows for accurate dive time tracking, and a water resistance of up to 300 meters ensures it can endure ocean depths. At its heart lies the Omega caliber 8800 movement, a marvel of engineering with Co-Axial escapement, reducing friction and enhancing longevity and accuracy. Rigorously tested according to Master Chronometer certification, this watch is resistant to magnetic fields reaching 15,000 gauss and has a power reserve of 55 hours. The Seamaster Diver 300M comes with a stainless steel bracelet that complements the watch's aesthetics while providing a comfortable fit. Its versatility makes it suitable for various environments, from diving to formal events.
Key Features
- Stainless Steel and Ceramic Case
- Summer Blue Gradient Dial
- Omega Caliber 8800 Movement
- 300m Water Resistance
- Co-Axial Escapement
- Master Chronometer Certified
- 55 Hour Power Reserve
Specifications
- Brand
- Omega
- Family
- Seamaster Diver 300m
- Model
- Seamaster Diver 300M Master Co-Axial 42 Stainless Steel / Summer Blue / Bracelet
- Reference
- 210.30.42.20.03.003
- 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] 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

Omega Seamaster Diver 300M Black Ceramic (210.92.44.20.01.003)
This Omega Seamaster Diver 300M Black Ceramic watch features a 44mm size and is in excellent condition, complete with a triple boxed set and various documentation.
- Condition: Excellent
- Size: 44mm diameter
- Depth rating: 30 bar (300m)
- Movement: Master Chronometer

2025 NEW UNWORN Omega Seamaster Diver 300M White Ceramic 210.32.42.20.04.001
This 2025 Omega Seamaster Diver 300M features a white ceramic dial with wave patterns, a stainless steel case with brushed and high-polished finish surfaces, and a black ceramic unidirectional bezel with a white enamel diving scale. It offers enhanced functionality for divers, including precise tracking of dive time.
- Condition: Brand new, unworn
- Case material: stainless steel
- Case size: 42MM
- Bezel type: black ceramic, unidirectional

MINT Omega SEAMASTER DIVER 300M GREEN WAVE DIAL BRACELET 2025 WARRANTY FULL SET
A 2025 Omega Seamaster Diver 300m in 42mm stainless steel with a green ceramic bezel and wave dial. The watch features an Omega Co-Axial Master Chronometer 8800 automatic movement.
- Condition: Mint, Unpolished Condition
- Movement: Omega Co-Axial Master Chronometer 8800 Automatic
- Case size: 42mm diameter
- Bezel material: Green Ceramic
Omega Seamaster Diver 300M - 210.30.42.20.04.001 - White Wave - 2024 - MINT
A modern Omega Seamaster Diver 300M with a white wave dial, available for inspection or pickup in Southern California.
- Condition: Pre-Owned - Mint
- Case Size: 41mm diameter
- Bracelet Type: Stainless Steel
- Dial: White Wave

2023 Omega Seamaster Diver 300m 43.5mm 210.92.44.20.01.003 Black Ceramic Dial
2023 Omega Seamaster Diver 300m with a black ceramic dial, adjustable black rubber strap, and other included accessories.
- Condition: Excellent overall condition
- Case size: 43.5mm diameter
- Water resistance: 300m depth rating
- Box and papers: Yes

Omega Seamaster Diver 300M 210.30.44.51.01.001
This Omega Seamaster Diver 300M is a high-end diver's watch with a stainless steel case and a date display. It features a black dial with silver hour markers and hands.
- Condition: Excellent condition
- Boxes included: true
- Book included: true
- Warranty card included: true