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

Reference 234.30.41.21.03.001

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.
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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] Omega Seamaster 300M Nekton 42mm 210.30.42.20.01.002 Full set

Omega Seamaster 300M Nekton 42mm 210.30.42.20.01.002 Full set

Up for sale is an Omega Seamaster 300M Nekton edition 42mm, featuring a primary matte finish dial with polished waves and solid case back.

  • Condition: Great to excellent condition, some marks on the case and bracelet
  • Movement: Omega Cal. 8806, METAS certified
  • Water resistance: not specified
  • Strap: OEM Omega rubber strap (can be included in the sale for additional cost)
Posted at
Dec 7, 2025, 12:02 PM
Active
[WTS] Omega Seamaster 300M - Ref # 212.30.41.20.03.001, 2018, Box and Papers

Omega Seamaster 300M - Ref # 212.30.41.20.03.001, 2018, Box and Papers

This Omega Seamaster Professional Diver 300M is a sleek 2018 model featuring a 41mm stainless steel case, blue dial, and automatic 2500 Co-Axial movement.

  • Condition: Very good
  • Case size: 41mm diameter
  • Material: stainless steel
  • Bezel type: blue ceramic uni-directional
Posted at
Dec 6, 2025, 6:01 PM
Active
[wts] MAR 2025 Omega Seamaster 300M Ceramic and titanium 43.5mm 210.92.44.20.01.002

MAR 2025 Omega Seamaster 300M Ceramic and titanium 43.5mm 210.92.44.20.01.002

A 43.5mm Omega Seamaster 300M Ceramic and titanium model from the MAR 2025 production run, featuring a barely worn OEM rubber strap and buckle.

  • Condition: Near mint
  • Case Material: Ceramic and titanium
  • Case Size: 43.5mm diameter
  • Strap Type: Authentic Omega rubber strap
Posted at
Dec 6, 2025, 12:04 PM
Active
[WTS] Omega Seamaster 300M 42mm “Great White” – Ref. 210.32.42.20.04.001 — Box + Manual 🤍 – $3,799 Shipped

Omega Seamaster 300M 42mm “Great White” – Ref. 210.32.42.20.04.001 — Box + Manual 🤍 – $3,799 Shipped

This Omega Seamaster Diver 300M 'White Wave' features a 42mm case, ceramic bezel, rubber strap, Master Chronometer Cal. 8800, display caseback, and 300m water resistance.

  • Condition: Excellent overall with minor scuffs and scratches
  • Case diameter: 42mm
  • Water resistance: 300m
Posted at
Dec 5, 2025, 9:56 PM
Active
[WTS] Omega Seamaster 300 233.30.41.21.01.001 - Full Kit

Omega Seamaster 300 233.30.41.21.01.001 - Full Kit

A 41mm Omega Seamaster 300 with a sapphire crystal and 300m water resistance, powered by the Omega 8400 Co-Axial movement.

  • Movement: Omega 8400 Co-Axial
Posted at
Dec 5, 2025, 4:26 PM
Active
[WTS] Omega Seamaster 300m Peter Blake 2262.50

Omega Seamaster 300m Peter Blake 2262.50

Omega - 2262.50 · $1,699
This listing features a Omega Seamaster 300m Peter Blake watch, specifically the model number 2262.50, with 36mm in size and powered by quartz movement.

  • Case size: 36mm diameter
Posted at
Dec 4, 2025, 3:33 PM
Active
[WTS] Omega Seamaster 300M 42mm “Blue Wave” – Ref. 210.32.42.20.03.001 – $3,799 Shipped

Omega Seamaster 300M 42mm “Blue Wave” – Ref. 210.32.42.20.03.001 – $3,799 Shipped

This Omega Seamaster Diver 300M is a Master Chronometer Cal. 8800 with 300m water resistance and a display caseback, featuring a 42mm diameter case.

  • Condition: Excellent overall with normal light wear
  • Case Size: 42mm diameter
  • Water Resistance: 300m
  • Movement: Calibre 8800
Posted at
Dec 3, 2025, 9:14 PM
Active
[WTS] Omega Seamaster 300 professional quartz. 41mm. Nice condition, no trades $2100 shipped.

Omega Seamaster 300 professional quartz. 41mm. Nice condition, no trades $2100 shipped.

The Omega Seamaster 300 professional quartz is a 41mm watch. It's in nice condition and available for $2100 shipped.

  • Condition: Nice condition
  • Case size: 41mm
  • Movement type: quartz
Posted at
Dec 3, 2025, 5:32 PM
Active