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

Omega Seamaster Diver 300M Seaweed Green Ceramic Box Papers 210.30.42.20.10.001
The Omega Seamaster Diver 300M features a Seaweed Green Ceramic wave dial and green ceramic bezel on a 42mm stainless steel bracelet. It's powered by the in-house Co-Axial Caliber 8800 movement, which offers a 55-hour power reserve and 300 meters of water resistance.
- Condition: 96% Near Mint Condition
- Movement: In-House Co-Axial Caliber 8800
- Water Resistance: 300m/1000ft
- Power Reserve: 55 hours

Omega Seamaster Diver 300M 210.30.44.51.01.001
This Omega Seamaster Diver 300M is a high-end diver's watch with excellent condition, accompanied by its original boxes, book, and warranty card.
- Condition: Excellent condition
- Boxes: original
- Book: yes
- Warranty Card: yes

MINT Omega SEAMASTER DIVER 300M STAINLESS STEEL BLACK BEZEL 2025 MODEL FULL SET
A 2025 model Omega Seamaster Diver 300m with a stainless steel case and black aluminum bezel, featuring an Omega Co-Axial Master Chronometer 8806 movement.
- Condition: Mint, unpolished condition
- Case size: 42mm
- Movement: Omega Co-Axial Master Chronometer 8806
- Water resistance: 300m
Omega Seamaster Diver 300m Chrome Grey 210.30.42.20.06.001 + Straps Warranty
This Omega Seamaster Diver 300m features a stunning PVC Chrome Grey dial, comes in great shape with only light signs of wear, and is delivered as a fully complete 2019 dated set.
- Condition: near mint condition
- Diameter: 42mm
- Depth rating: 300m
- Warranty: 1 year

Omega 36th America's Cup Seamaster Diver 300m Chronograph 210.30.44.51.03.002
The Omega Seamaster Diver 300M Chronograph is a 44 mm stainless steel watch with blue ceramic bezel, white enamel diving scale, and laser-engraved waves on the blue ceramic dial.
- Condition: UNPOLISHED with minimal wear
- Case material: stainless steel
- Bracelet type: metal bracelet with Quick Change system
- Strap included: rubber strap
OMEGA Seamaster Diver 300M Complete Set Mint Condition 41mm 212.30.42.50.01.001
Omega Seamaster Diver 300M comes as a complete set, including original wood box, warranty card, leather holder, instruction booklet, and all links. The movement runs well within COSC standards as tested on a timegrapher.
- Condition: Excellent preowned condition with subtle signs of wear
- Case size: 41mm
- Depth rating: 300m
Omega Seamaster Diver 300m Titanium Green Bronze 210.92.42.20.10.001
This Omega Seamaster Diver 300m features a titanium case with a bronze bezel, making it a unique and stylish watch.
- Condition: Brand new unworn
- Case material: titanium
- Bezel material: bronze
- Water resistance: 300m

MINT OMEGA SEAMASTER DIVER 300M 007 JAMES BOND 60th ANNIVERSARY 2023 FULL SET
This is a 2023 Omega Seamaster Diver 300m 007 James Bond 60th Anniversary Edition watch, featuring a stainless steel case with blue bezel and dial.
- Condition: Mint, Unpolished
- Movement: Omega Co-Axial Master Chronometer 8806
- Power reserve: 55 hours
- Warranty: Under 5 years factory warranty left