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 300 Heritage Co-Axial Chronometer 234.30.41.21.01.001 Complete Set

Omega Seamaster 300 Heritage Co-Axial Chronometer 234.30.41.21.01.001 Complete Set

The Omega Seamaster 300 Heritage is a vintage-inspired watch with modern features, featuring a black dial, broad arrow hands, and a steel case.

  • Condition: Excellent
  • Case material: steel
  • Bracelet: matching steel bracelet
  • Box set included: yes
Posted at
Feb 2, 2026, 7:32 PM
Active
[WTS] Omega Seamaster 300m Chronograph 44mm 212.30.44.50.03.001

Omega Seamaster 300m Chronograph 44mm 212.30.44.50.03.001

This Omega Seamaster 300m Chronograph features a 44mm automatic movement and is available for purchase.

  • Condition: Fresh polish
  • Bracelet Length: 7.25 inches
Posted at
Feb 2, 2026, 5:09 PM
Active
[WTS] Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Papers- $2,790 - Reserved post for u/3twellv

Omega Seamaster 300M Co-Axial 41mm 2220.80 Box and Papers- $2,790 - Reserved post for u/3twellv

Omega - 2220.80 · $2,790
Up for sale is my Omega Seamaster 2220.80, a 41mm automatic co-axial cal 2500 movement watch in great condition.

  • Condition: 8.8/10 - great condition with minimal marks/hairlines
  • Case size: 41mm
  • Bracelet length: 7-7.25 inch (fits wrists up to 7.25 inches)
  • Shipping method: Fedex Priority Shipping
Posted at
Feb 2, 2026, 12:22 AM
Active
[WTS][US] Omega Seamaster 300 Heritage - 41mm - Black Dial - 233.30.41.21.01.001

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

Up for sale is an Omega Seamaster 300 Heritage - 41mm watch with a black dial.

  • Condition: Fantastic condition with minor hairlines on case, clasp, and bracelet
  • Serial Date: 2023
  • Includes Links: true
Posted at
Jan 31, 2026, 10:39 AM
Active

(SOLD) Omega Seamaster 300M | 210.62.44.20.01.00 - Full Set

The Omega Seamaster 300M is a stainless steel automatic watch with a date display and water resistance of up to 300m.

  • Status: (SOLD)
Posted at
Apr 7, 2025, 10:22 AM
Active
Omega Seamaster 300M - Black Aluminum - 210.30.42.20.01.010 ( new / 2025 )

Omega Seamaster 300M - Black Aluminum - 210.30.42.20.01.010 ( new / 2025 )

This Omega Seamaster 300M features a 42mm stainless steel case with a black aluminum dial and mesh bracelet, powered by the Master Co-Axial Movement.

  • Condition: Brand new
  • Case size: 42mm
  • Movement: 8806 Master Co-Axial
Posted at
Apr 6, 2025, 4:26 PM
Active
Omega Seamaster 300M - Summer Blue - 42mm - 210.30.42.20.03.003 ( new / 2024 )

Omega Seamaster 300M - Summer Blue - 42mm - 210.30.42.20.03.003 ( new / 2024 )

This Omega Seamaster 300M 42mm features a Summer Blue dial on a stainless steel bracelet, powered by the Master Co-Axial movement.

  • Condition: Brand new
  • Case size: 42mm
  • Movement type: Master Co-Axial
Posted at
Apr 4, 2025, 2:51 PM
Active
Omega Seamaster 300M | 210.62.44.20.01.00 - Full Set

Omega Seamaster 300M | 210.62.44.20.01.00 - Full Set

A black ceramic and 18K gold Omega Seamaster 300M with a wave dial, measuring 43.5mm in diameter.

  • Condition: Very Good (VG)
  • Case size: 43.5mm
  • Material: Black Ceramic and 18K Gold
Posted at
Apr 4, 2025, 12:18 PM
Active
Omega Seamaster 300M - 210.32.42.20.03.001

Omega Seamaster 300M - 210.32.42.20.03.001

This Omega Seamaster 300M is a high-end diving watch with a 42mm case size and 300m water resistance rating. It features a very good condition, minor-wear-only case with perfect front and back sapphire crystals.

  • Condition: Very good condition
  • Case Size: 42mm
  • Water Resistance Rating: 300m (1000 ft.)
  • Depth Rating: 300m depth rating
Posted at
Apr 3, 2025, 4:36 PM
Active