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

2023 Omega Seamaster Diver 300M 007 42mm Titanium Brown Dial
A 2023 Omega Seamaster Diver 300M James Bond 007 Edition with a 42mm titanium case and brown dial, featuring a Master Chronometer and various documentation.
- Condition: Excellent overall condition
- Warranty: 5 year manufacturer warranty
- Case size: 42mm diameter
- Band length: 8.5inch wrist (Adjustable Strap)

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 Summer Blue 210.30.42.20.03.003
This Omega Seamaster Diver 300m features a Summer Blue Dial and comes in great shape, showing only minor hairlines.
- Condition: mint condition
- Depth rating: 300m
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