Omega Seamaster 300 Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet
Reference 234.30.41.21.01.001
About this watch
The Omega Seamaster 300 Master Chronometer is a luxurious timepiece that embodies the spirit of adventure while delivering peak performance. Its stunning black dial, mixed indexes, and arrow-shaped hands create a sophisticated look that's perfect for formal or casual settings. The sapphire crystal glass provides excellent clarity, and the open case back showcases Omega's craftsmanship. This watch is built to withstand diving conditions with its robust stainless steel bracelet and 300-meter water resistance. At its core beats the Omega caliber 8912, an automatic movement featuring a Co-Axial escapement that minimizes friction, enhancing precision and reliability. The Seamaster 300 Master Chronometer is a certified chronometer that promises reliability, making it a worthy companion for years to come.
Key Features
- 41mm Round Case
- Stainless Steel Bracelet with 21mm Lug Width
- Sapphire Crystal Glass
- Omega Caliber 8912 Automatic Movement
- Co-Axial Escapement and METAS Certification
- 300-Meter Water Resistance
Specifications
- Brand
- Omega
- Family
- Seamaster 300
- Model
- Seamaster 300 Master Chronometer Stainless Steel / Black / Bracelet
- Reference
- 234.30.41.21.01.001
- Movement
- 8912
- Movement Features
-
- Hours, Minutes, Seconds
- Chronometer, Co-Axial Escapement
- Case
- 41mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 300
Current Listings
![[WTS][US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 234.30.41.21.01.001 - Full Set](https://preview.redd.it/o9n9s9wdurxe1.jpg?width=640&crop=smart&auto=webp&s=8b2ef837f9c18a072d8b1af8e4287585ee5cd211)
[US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 234.30.41.21.01.001 - Full Set
This Omega Seamaster 300 Heritage is a mechanical watch with a black dial and 41mm case size.
- Condition: Fantastic, minor hairlines on case
- Case Size: 41mm diameter
- Dial Color: Black
Omega Seamaster Heritage 300 Ref 234.30.41.21.01.001, Full Set
The Omega Seamaster Heritage 300 Ref 234.30.41.21.01.001 features a 41mm stainless steel case with a domed sapphire crystal, unidirectional rotating bezel, exhibition case back, black dial with recessed hour markers and numerals filled with vintage colored SuperLuminova, broad arrow handset rhodium-plated and filled with vintage colored SuperLuminova.
- Condition: Full Set, includes original outer box, inner wood Omega watch case, operating instruction booklet, Master Chronometer card, Pictograms card, warranty card, serial number hangtag, Omega card holder, and original Omega stainless steel bracelet
- Movement: Master Chronometer Certified Co-Axial Caliber 8912
- Power reserve: 60 hours
- Water resistance: 300 meters
![[WTS][US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 234.30.41.21.01.001 - Full Set](https://preview.redd.it/bb37taq6vdwe1.jpg?width=640&crop=smart&auto=webp&s=57121a2a1a72725ef4dcbaf4803c20fae25a3399)
[US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 234.30.41.21.01.001 - Full Set
Omega Seamaster 300 Heritage, 41mm black dial watch in excellent mechanical working order.
- Condition: Fantastic condition
- Case Size: 41mm diameter
![[WTS] Omega Seamaster 300M "007 Edition" 210.92.42.20.01.001](https://preview.redd.it/qa4jebdna9ye1.jpg?width=640&crop=smart&auto=webp&s=8d842a645fb0c20562a6059036145380d4b168b7)
Omega Seamaster 300M "007 Edition" 210.92.42.20.01.001
The Omega Seamaster Diver 300M is an iconic timepiece released in collaboration with the James Bond franchise. It's crafted from Grade 2 titanium, making it lightweight while maintaining durability.
- Condition: Great condition with minor imperfections
- Case material: Grade 2 titanium
- Bracelet type: Mesh bracelet
- Water resistance: 300m

Omega Seamaster 300 - Diver - White Dial - 210.32.42.20.04.001 ( excellent )
This Omega Seamaster 300 features a white wave dial on a rubber strap, with a 42mm stainless steel case and Master Chronometer movement.
- Condition: Excellent
- Case size: 42mm diameter
- Movement: 8800 Master Co-Axial Movement

Omega Seamaster 300M 20mm Steel Bracelet - STZ010108 ( excellent )
This excellent condition Omega Seamaster 300M Stainless Steel Bracelet is a 20mm accessory that fits 42mm Seamaster 300M watches and other 20mm Omega models. It has been well-maintained and presents as new.
- Condition: Excellent
- Lug Width: 20mm
- Trade Policy: We are cash buyers and will consider all modern trades

Omega OEM Seamaster 300M Black Diver Strap and Deployant Clasp ( excellent )
This is an OEM Omega Black Rubber Strap & Deployant Clasp for the Seamaster 300M Wave Dial, a high-quality accessory for watch enthusiasts.
- Condition: Excellent
- Material: Rubber
- Strap Width: 20mm
- Clasp Width: 18mm
![[WTS] Omega Seamaster 300m White dial w](https://preview.redd.it/u1znf4rb67ye1.jpg?width=640&crop=smart&auto=webp&s=b620b03463a710e1386b88e38a0d0decc8a59dac)
Omega Seamaster 300m White dial w
A 42mm Omega Seamaster white dial watch with original metal bracelet and additional straps. The watch is fully functioning and in excellent condition.
![[WTS] 2019 Omega Seamaster 300M Chrono GMT 44MM Full Set](https://preview.redd.it/6katob7p37ye1.jpg?width=640&crop=smart&auto=webp&s=1089f69424223044139def84195771df63530882)
2019 Omega Seamaster 300M Chrono GMT 44MM Full Set
For sale is a 2019 Omega Seamaster SMP 300M 44MM GMT in excellent condition, featuring a GMT function and chronograph. The watch has an automatic CoAxial Calibre movement with a sapphire crystal.
- Condition: Excellent Condition
- Year Of Manufacture: 2019
- Case Size: 44mm diameter