Omega Seamaster 300 Seamaster 300 Master Chronometer Stainless Steel / Blue / Bracelet

Reference 234.30.41.21.03.001

Omega Seamaster 300 Master Chronometer Stainless Steel / Blue / Bracelet

About this watch

The Omega Seamaster 300 Master Chronometer, reference 234.30.41.21.03.001, is a stunning example of craftsmanship and precision fused into a timepiece. Its striking blue dial, crafted from high-quality stainless steel, exudes durability and elegance. The watch seamlessly transitions between casual and formal settings, making it suitable for both everyday wear and special occasions. At the core of the Seamaster 300 lies the automatic Omega Caliber 8912, featuring a chronometer and co-axial escapement for exceptional accuracy and reliability. This movement is built to last, with 38 jewels and a 60-hour power reserve. The watch's impressive water resistance of 300 meters ensures it can withstand even the most demanding underwater adventures. The Omega Seamaster 300 Master Chronometer is not just a timepiece; it's a celebration of craftsmanship, innovation, and style. Its rich history, modern features, and breathtaking design make it an investment that any watch enthusiast would be proud to own.
Buy Now on Jomashop
This is an affiliate link
MSRP: $7,100
Market Price: $4,467

Key Features

  • Automatic Omega Caliber 8912 movement
  • 300 meters water resistance
  • 41mm stainless steel case diameter
  • 38 jewels for exceptional accuracy
  • 60-hour power reserve for reliability
  • Co-axial escapement for reduced friction and increased accuracy
  • Chronometer certification for precision and reliability

Specifications

Brand
Omega
Family
Seamaster 300
Model
Seamaster 300 Master Chronometer Stainless Steel / Blue / Bracelet
Reference
234.30.41.21.03.001
Movement
8912
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
41mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] 1970 Omega Seamaster 300 🔥 Rare This Complete 🔥 Must See Ref. 165.024

1970 Omega Seamaster 300 🔥 Rare This Complete 🔥 Must See Ref. 165.024

Omega - 165.024 · $7,000
A 1970 Omega Seamaster 300 with a rare pencil hand design, in excellent condition considering its age. The watch is beyond complete and comes with original purchase receipt, boxes, bracelet, and all paperwork.

  • Condition: Honest, unpolished, worn
  • Bracelet Width: 8"
  • Crystal Condition: marks
  • Crown Condition: decay
Posted at
May 1, 2026, 7:15 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster 300 Summer Blue Special Edition 210.30.42.20.03.003

Omega Seamaster 300 Summer Blue Special Edition 210.30.42.20.03.003

Omega - 210.30.42.20.03.003 · $4,699
The Omega Seamaster 300 is a special edition watch featuring a striking summer blue dial and steel band.

  • Condition: Lightly preowned with polish to retail
  • Case size: 42MM diameter
  • Band material: Steel
Posted at
May 1, 2026, 7:02 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster 300m Black dial 210.30.42.20.01.001 Full Kit+ Receipt $4350+ 🚢

Omega Seamaster 300m Black dial 210.30.42.20.01.001 Full Kit+ Receipt $4350+ 🚢

Omega - 210.30.42.20.01.001 · $4,350
An iconic Omega Seamaster 300m with a stunning black dial is available now, featuring a 42mm diameter case and 55 hour power reserve.

  • Condition: Excellent with minor scratches on case and clasp
  • Movement: 8800
  • Water Resistance: 300m
  • Case Size: 42mm
Posted at
Apr 30, 2026, 9:24 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster 300m Diver 41mm Black "No Wave" Dial 212.30.41.20.01.003, $3,600

Omega Seamaster 300m Diver 41mm Black "No Wave" Dial 212.30.41.20.01.003, $3,600

Omega - 212.30.41.20.01.003 · $3,600
This Omega Seamaster 300m Diver is a classic Bond watch with a distinctive black 'no wave' ceramic dial and bezel, featuring a functional combination of features such as a 41mm case diameter and scratch-resistant ceramic bezel. The watch comes in excellent condition with a clean crystal, bezel, case, and bracelet.

  • Condition: Excellent
  • Case diameter: 41mm
  • Bezel material: Ceramic
  • Bracelet material: Omega stainless steel
Posted at
Apr 28, 2026, 9:46 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 Box and Papers - $2,450

Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 Box and Papers - $2,450

Omega - 2222.80 · $2,450
Up for sale is my great condition Omega Seamaster 2222.80, this watch measures at 36mm and has an automatic co-axial cal 2500 movement.

  • Condition: 8.9/10 great condition with minimal marks and hairlines
  • Movement: co-axial cal 2500
  • Case size: 36mm
  • Bracelet type: original Omega steel bracelet
Posted at
Apr 28, 2026, 8:58 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster 300m Ceramic 210.92.44.20.01.001 Mint

Omega Seamaster 300m Ceramic 210.92.44.20.01.001 Mint

Omega - 210.92.44.20.01.001 · $5,500
For sale is a mint condition Omega Seamaster Diver 300m in black ceramic, delivered as a fully complete set with all box, books, tag, and warranty card.

  • Condition: Mint condition
  • Materials: Black ceramic case
  • Water Resistance: 300m
Posted at
Apr 28, 2026, 5:21 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster 300M 212.30.41.20.01.001 — “Quantum of Solace” 007 LE — Fresh Service — $3,599 Shipped (Tariff Covered)

Omega Seamaster 300M 212.30.41.20.01.001 — “Quantum of Solace” 007 LE — Fresh Service — $3,599 Shipped (Tariff Covered)

Omega - 212.30.41.20.01.001 · $3,599
This Omega Seamaster Professional 300M 'Quantum of Solace' Limited Edition features a black dial and the iconic 007 counterweight on the seconds hand. Powered by Omega Cal. 2500 Co-Axial automatic movement, it has just been fully serviced and is running strong with excellent timegrapher performance.

  • Condition: Pre-owned, serviced with honest wear consistent with age
  • Case Dimensions: 41mm x 47mm x 12.5mm
  • Lug Width: 20mm
  • Wrist Size: approximately 18.2cm (7.17")
Posted at
Apr 28, 2026, 10:39 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster 300M Co-Axial 36mm - $2,250

Omega Seamaster 300M Co-Axial 36mm - $2,250

Omega - 2220.80 · $2,250
Up for sale is my Omega Seamaster 36mm automatic co-axial cal 2500 movement watch in great condition. The watch has a steel case and original Omega steel bracelet.

  • Condition: Excellent (8.9/10)
  • Case size: 36mm
  • Movement: co-axial cal 2500
  • Crystal: sapphire
Posted at
Apr 27, 2026, 9:28 PM
Active
View listing on r/WatchExchange
[WTS] OMEGA SEAMASTER 300M DIVER 210.30.44.51.01.001

OMEGA SEAMASTER 300M DIVER 210.30.44.51.01.001

OMEGA - 210.30.44.51.01.001 · $6,500
A 2024 Omega Seamaster Diver 300M Chronograph, part of the full set including inner and outer boxes, two traveling cases, one original rubber strap, and a low compression watch.

  • Low Comp Price: 7,750
  • High Comp Price: 9,150
  • Shipping Options: Insured shipping Fedex next day Wire ,Zelle, Cash, CC + 3.5 Fee
Posted at
Apr 27, 2026, 9:25 PM
Active
View listing on r/WatchExchange