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

Reference 234.30.41.21.03.002

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 300m Blue 212.30.41.20.03.001

Omega Seamaster 300m Blue 212.30.41.20.03.001

This Omega Seamaster Professional 300m Blue is a men's watch featuring a blue dial and a stainless steel bracelet.

  • Length of bracelet: 7.75 inches
Posted at
Aug 23, 2025, 3:10 PM
Active
[WTS] 1969 Omega Seamaster 300 (Ref. 165.024) W BOX & *OMEGA REFURBISHED*

1969 Omega Seamaster 300 (Ref. 165.024) W BOX & *OMEGA REFURBISHED*

Omega - 165.024 · $7,999
This 1969 Omega Seamaster 300 is a stunning collectors piece with a matte dial and original lines. It has been refurbished at Omega and comes with an authentication document and new box.

  • Condition: Very good condition, refurbished
  • Case makers: Two: Huguenin Frères (HF) and Centrale Boîtes (CB)
  • Box type: Old style
  • Papers included: Omega authentication document
Posted at
Aug 22, 2025, 3:19 PM
Active
[WTS] New Omega Seamaster 300m Diver | ref. 210.30.42.20.01.010 | 2025 Complete Set

New Omega Seamaster 300m Diver | ref. 210.30.42.20.01.010 | 2025 Complete Set

This Omega Seamaster 300m Diver is a brand new, complete set watch in excellent condition. It features a 42mm diameter case and has a depth rating of 300m.

  • Condition: new, unworn
  • Depth rating: 300m
  • Set contents: Double Boxed with Travel Case, Warranty Card, Pictograms and Master Chronometer Card, Instruction Booklet
Posted at
Aug 22, 2025, 12:28 PM
Active
[WTS] Omega Seamaster 300M Black Wave on Rubber Strap - 2025 Mint Condition

Omega Seamaster 300M Black Wave on Rubber Strap - 2025 Mint Condition

For sale is my Omega Seamaster 300M black wave dial 42mm on OEM rubber strap.

  • Condition: Mint Condition (9.5/10)
  • Purchase Date: March 2025
  • Strap Material: Rubber
  • Original Accessories: Yes, includes boxes, manual, chronometer card, pictograms, and Jomashop warranty
Posted at
Aug 22, 2025, 11:14 AM
Active
[WTS][CONUS] Omega Seamaster 300m - $4000

[CONUS] Omega Seamaster 300m - $4000

Omega - 300m · $4,000
A black dial Omega Seamaster 300m for sale, featuring a rubber strap and included inner box, outer box, and warranty card. The watch runs perfectly and comes with a tapper's warranty card.

  • Condition: Like new with signs of wear
  • Box: Inner box, outer box
  • Strap: Rubber strap
  • Warranty: Tapper’s warranty card
Posted at
Aug 22, 2025, 10:24 AM
Active
[WTS][US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 233.30.41.21.01.001 - on Nato Strap

[US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 233.30.41.21.01.001 - on Nato Strap

Up for sale is an Omega Seamaster 300 Heritage - 41mm - Black Dial, a mechanically perfect watch that comes with various accessories.

  • Condition: Fantastic
  • Case size: 41mm
Posted at
Aug 21, 2025, 8:09 AM
Active
[WTS] Omega Seamaster 300M Quartz 2223.80 – 36mm Mid-Size; Last Quartz SMP Model

Omega Seamaster 300M Quartz 2223.80 – 36mm Mid-Size; Last Quartz SMP Model

Omega - 2223.80 · $3,500
This is a Omega Seamaster 300M Quartz in a 36mm mid-size case, which is the last quartz model of the Seamaster Professional series.

  • Size: 36mm diameter
Posted at
Aug 20, 2025, 9:40 PM
Active