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

Reference 234.30.41.21.03.002

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

About this watch

The Omega Seamaster 300 Master Chronometer 234.30.41.21.03.002 is a masterpiece of luxury watchmaking, boasting a stunning Summer Blue gradient dial that exudes freshness and vibrancy. The round case measures 41.00 mm in diameter and 13.85 mm in height, striking a perfect balance between masculinity and elegance. Crafted from high-grade stainless steel and featuring a ceramic bezel, this watch is built to withstand the rigors of underwater adventures as well as everyday wear. The sapphire crystal provides scratch resistance and clarity that's hard to beat. With its impressive 300 meters of water resistance, this timepiece is a reliable companion for serious divers and water sports enthusiasts alike. At the heart of this masterpiece lies the Omega caliber 8912, an automatic movement that ensures accuracy and reliability with a 60-hour power reserve and a frequency of 25,200 vibrations per hour. METAS-certified, it meets the highest standards of precision and performance. The mixed indexes and arrow hands ensure readability at a glance, even in low light conditions. Whether you're diving into the ocean or diving into your daily routine, this watch is a reliable companion that can handle it all.
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MSRP: $7,400
Market Price: $5,510

Key Features

  • Striking Summer Blue gradient dial
  • Robust and durable materials (stainless steel, ceramic bezel)
  • High water resistance (300m)
  • METAS-certified movement for accuracy
  • Versatile for both casual and formal wear

Specifications

Brand
Omega
Family
Seamaster 300
Model
Seamaster 300 Master Chronometer Stainless Steel / Summer Blue / Bracelet
Reference
234.30.41.21.03.002
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 Summer Blue anniversary Edition (Excellent condition, full kit!) $4999

Omega Seamaster Summer Blue anniversary Edition (Excellent condition, full kit!) $4999

Omega - 234.30.41.21.03.002 · $4,999
The Omega Seamaster Summer Blue anniversary Edition is a classic dive watch with a multi versatile beautiful blue dial, anniversary edition and iconic caseback.

  • Condition: Excellent condition
  • Diameter: 41mm
  • Water resistance: 300m
  • Movement: 8912 Co-Axial movement
Posted at
Dec 16, 2025, 11:26 PM
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[WTS] Omega Seamaster 300M Co-Axial Mid-size 2220.80 - $2,800 - Reserved post for u/agrem19

Omega Seamaster 300M Co-Axial Mid-size 2220.80 - $2,800 - Reserved post for u/agrem19

Omega - 2220.80 · $2,800
Up for sale is my Omega Seamaster 2220.80, a mid-size automatic co-axial cal 2500 movement watch measuring 41mm in diameter.

  • Condition: Good condition with minimal marks and hairlines on the case, caseback, and bezel insert
  • Movement type: Automatic Co-Axial Cal 2500
  • Bracelet size range: 7-7.25 inches (depending on wrist shape)
  • Shipping method: Fedex Priority Shipping from the Philippines
Posted at
Dec 17, 2025, 9:30 PM
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[WTS] Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,290

Omega Seamaster 300M Co-Axial Mid-size 36mm 2222.80 - $2,290

Omega - 2222.80 · $2,290
The Omega Seamaster 300M Co-Axial Mid-size is a 36mm automatic watch featuring the co-axial cal 2500 movement. It has a steel case, original Omega steel bracelet, and sapphire crystal.

  • Condition: 8.9/10 - great condition with minimal marks
  • Movement: Co-Axial Cal 2500
  • Bracelet size: fits up to 7-7.25 inch wrists
  • Shipping: Fedex Priority Shipping from Philippines with 3-5 days global delivery time
Posted at
Dec 17, 2025, 8:46 PM
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[WTS] Omega Seamaster 300 Seaweed - Rubber Strap and Omega Mesh Bracelet - 210.32.42.20.10.001

Omega Seamaster 300 Seaweed - Rubber Strap and Omega Mesh Bracelet - 210.32.42.20.10.001

Omega - 210.32.42.20.10.001 · $5,100
A Omega Seamaster 300 in Seaweed Green, featuring a rubber strap and OEM mesh bracelet.

  • Condition: Very good with minor swirls
  • Strap: Rubber strap and OEM mesh strap included
  • Crystals: Clean crystal
  • Bezel: Excellent bezel condition
Posted at
Dec 16, 2025, 11:16 AM
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[WTS] Omega Seamaster 300M Ref. 212.30.41.20.01.005 – “James Bond 41mm” – LE 10059/11007 – Watch + Cards 💥 – $3,999 Shipped

Omega Seamaster 300M Ref. 212.30.41.20.01.005 – “James Bond 41mm” – LE 10059/11007 – Watch + Cards 💥 – $3,999 Shipped

Omega - 212.30.41.20.01.005 · $3,999
The Omega Seamaster Diver 300M James Bond Limited Edition is a numbered limited run iconic Bond reference, featuring a 41mm stainless steel case and Co-Axial Chronometer movement. It has a black 007 dial, display caseback with 'James Bond 50 Years' rotor, and 300m water resistance.

  • Condition: Very good overall with normal wear
  • Case size: 41mm
  • Water resistance: 300m
  • Movement: Co-Axial Chronometer
Posted at
Dec 15, 2025, 9:55 PM
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[WTS] Omega Seamaster 300 41mm Titanium on Titanium Ref. 233.90.41.21.03.001 (2022) - Pre-Owned Good Condition w/ Box & Papers

Omega Seamaster 300 41mm Titanium on Titanium Ref. 233.90.41.21.03.001 (2022) - Pre-Owned Good Condition w/ Box & Papers

Omega - 233.90.41.21.03.001 · $5,500
The Omega Seamaster 300 is a lightweight titanium diver's watch with a striking blue dial and 41mm case, built for adventure yet refined for everyday wear.

  • Condition: Pre-Owned good condition
  • Case Diameter: 41mm
  • Movement: Automatic, Calibre 8400
  • Water Resistance: 30 ATM
Posted at
Dec 15, 2025, 6:59 PM
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[WTS] Omega Seamaster 300 233.30.41.21.01.001 - Full Kit

Omega Seamaster 300 233.30.41.21.01.001 - Full Kit

Omega - 300 233.30.41.21.01.001 · $3,750
A Seamaster 300 from Omega, featuring a 41mm case diameter and 300m water resistance.

  • Movement: Omega 8400 Co-Axial
  • Crystal: Sapphire
  • Water resistance: 300m
Posted at
Dec 15, 2025, 11:33 AM
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[WTS] Vintage 1966 Omega Seamaster 300 165.024 Calibre 550 Fresh Service!

Vintage 1966 Omega Seamaster 300 165.024 Calibre 550 Fresh Service!

Omega - 165.024 · $6,950
A vintage Omega Seamaster 300 with original bracelet and engraving on the caseback, freshly serviced.

  • Condition: Decent, with even patina on the dial
  • Bracelet: Original
  • Caseback: Engraving still visible
Posted at
Dec 15, 2025, 9:15 AM
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[WTS] Iconic Diver: Omega Seamaster 300M Blue - 2025 - Unworn

Iconic Diver: Omega Seamaster 300M Blue - 2025 - Unworn

Omega - 210.30.42.20.03.001 · $4,400
The Omega Seamaster Diver 300M Co-Axial Master Chronometer features a deep blue ceramic dial with laser-engraved waves, 42mm stainless steel case, and a blue ceramic bezel. It includes Omega's METAS-certified Caliber 8800 and has 300 meters of water resistance.

  • Condition: Unworn
  • Case diameter: 42mm
  • Water resistance: 300m
  • Movement: Caliber 8800
Posted at
Dec 14, 2025, 2:28 PM
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