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] Omega Seamaster 300 2531.80](https://external-preview.redd.it/U8VC8NIHC9pZDWw84TRs2Rp7lqdkMjG91hgZA1DhlC8.png?auto=webp&s=3277e5598c79e1b5e1ff576899edb1180ad981b7)
Omega Seamaster 300 2531.80
A daily-wearable Omega Seamaster 300 in great condition, with a 7.25" wrist size and no stretch in the bracelet.
![[WTS] Omega Seamaster 300M - Blue - $4000 Shipped](https://external-preview.redd.it/VWL_aB0BhKP9Y3JiAl7AdTmkpVGBUQC8qixjujDrZuc.jpeg?auto=webp&s=f3004e5fecadd1e5af1ca30aed06613c38fcf4bc)
Omega Seamaster 300M - Blue - $4000 Shipped
A one-year-old Omega Seamaster 300M in blue, purchased new from Jomashop and showing some wear. The watch has been well-maintained with a replaced pin & buckle strap and an included Omega Nato Strap. Additional straps and accessories are available for separate purchase.
- Condition: Moderate signs of desk diving marks, no major nicks or dents
- Strap: Omega Rubber strap with Deployant Clasp
- Included extras: Omega Nato Strap, optional bracelet and black leather strap

Pre-Owned Omega Seamaster 300 233.32.41.21.01.002
This pre-owned Omega Seamaster 300 is a black dial watch with automatic movement, 41mm stainless steel case, water resistance of 300 meters, and brown leather strap.
- Condition: 94% condition due to faint marks on the bezel and throughout the case, minor creasing and faint marks on the clasp
- Case size: 41mm diameter
- Material: Stainless Steel
- Dial color: Black
![[WTS] Omega Seamaster 300M Transitional Ref 2220.80 "Casino Royale"](https://preview.redd.it/fgx8zqyggr7f1.png?auto=webp&s=2895aa37fb80b543c7f4e81ab7a7f64b530a90a6)
Omega Seamaster 300M Transitional Ref 2220.80 "Casino Royale"
This Omega Seamaster 300M Transitional model is a rare find, featuring the slim case and aluminum bezel of the classic 2531.80 Bond style with the new co-axial movement and updated dial.
- Condition: Pre-owned
- Movement: Co-Axial
- Water Resistance: 50m depth rating
- Case Size: Full size automatic
![[WTS] Omega Seamaster 300M full kit w/ extra nato](https://external-preview.redd.it/dX4kJrH8aBaM_Dy2pC55qDecRhRuc8CVxG0VJhAnSko.jpeg?auto=webp&s=8acbd39d22d737b1adeed0aa8239e700523bdd06)
Omega Seamaster 300M full kit w/ extra nato
A Omega Seamaster 300M sold with a rubber strap and an extra Omega nato. The watch comes with warranty card, inner and outer boxes.
- Warranty Card Date: 2020

Pre-Owned Omega Seamaster 300 233.32.41.21.01.002
This pre-owned Omega Seamaster 300 is a black dial watch with an automatic movement, 41mm stainless steel case, water resistance of 300 meters, and comes with a brown leather strap. It's in good condition but has some cosmetic imperfections.
- Condition: 94% condition, with faint marks on the bezel and case, minor creasing and faint marks on the clasp
- Case size: 41mm
- Material: Stainless Steel
- Dial color: Black
![[WTS] Omega Seamaster 300M](https://external-preview.redd.it/GDOzARdnntCCjEnTwJAE6J0xiAwkNUixKIX98T1Movw.jpeg?auto=webp&s=003d8878a8cf532fb5f86b7b7a500f836f95dee3)
Omega Seamaster 300M
A mint-condition Omega Seamaster 300M, complete with full box and papers.
- Condition: mint
- Status: full box and papers
![[WTS] Omega Seamaster 300M – White Wave Dial – Full Kit – $3999](https://external-preview.redd.it/k-O1uhrW6PJ8kvKp1i0W4uyqolLyv_szQOEGzMVdnxs.jpeg?auto=webp&s=584667e39ac7ac31e8b0af0658040d4c63e0e60e)
Omega Seamaster 300M – White Wave Dial – Full Kit – $3999
This Omega Seamaster Diver 300M features a white ceramic wave dial and black ceramic bezel in a 42mm stainless steel case with screw-down crown, helium escape valve, and 300m water resistance. It is powered by the Co-Axial Master Chronometer Caliber 8800.
- Condition: Great pre-owned condition
- Bracelet condition: hairlines consistent with use
- Crystal condition: flawless
- Bezel condition: flawless
![[WTS] Omega Seamaster 300M '007 Edition' 210.90.42.20.01.001](https://external-preview.redd.it/ZEuq53YhBzIXaMirVR--66Y_yFNXdNI9dD7LfSVJry8.jpeg?auto=webp&s=ce4656cf8efc234ff3228a709ce0bbb8261686cc)
Omega Seamaster 300M '007 Edition' 210.90.42.20.01.001
This listing is for an Omega Seamaster 300M '007 Edition' watch with a 42mm titanium case and brown tropical aluminum bezel ring.
- Condition: pristine condition
- Case material: titanium
- Water resistance: 300m (1000ft)
- Movement: Calibre Omega 8806 self-winding co-axial master chronometer