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 300Heritage Co-Axial Chronometer 234.30.41.21.01.001 Complete Set

Omega Seamaster 300Heritage Co-Axial Chronometer 234.30.41.21.01.001 Complete Set

The Omega Seamaster 300 Heritage has a black dial with broad arrow hands and warm toned lume, giving it a classic dive watch look. The steel case has sharp lines and a confident shine, paired with a matching bracelet that makes it feel solid and balanced.

  • Condition: Excellent
  • Case material: steel
  • Bracelet type: matching
Posted at
Jan 4, 2026, 4:52 PM
Active
[WTS] Omega Seamaster 300 Heritage

Omega Seamaster 300 Heritage

This Omega Seamaster 300 Heritage is a pre-owned watch from 2021 with additional details including new NATO strap and quick adjust clasp.

  • Condition: Excellent Pre-Owned Condition w/ minor signs of wear
  • Year: 2021
Posted at
Jan 4, 2026, 3:45 PM
Active
[WTS] Omega Seamaster 300 / Commanders Watch / 007 / Excellent / $5300

Omega Seamaster 300 / Commanders Watch / 007 / Excellent / $5300

Omega - 300 · $5,300
The listing mentions an Omega Seamaster 300, also known as a Commander's Watch, with ties to the James Bond franchise.

  • Condition: Excellent
  • Model name: Seamaster 300
Posted at
Jan 4, 2026, 1:26 PM
Active
[WTS] Omega Seamaster 300 Gray Dial Bracelet & Strap $4385

Omega Seamaster 300 Gray Dial Bracelet & Strap $4385

Omega - Seamaster 300 · $4,385
The Omega Seamaster 300 is a watch with a gray dial and features both a bracelet and strap.

  • Dial color: gray
Posted at
Jan 4, 2026, 10:04 AM
Active
[WTS] OMEGA SEAMASTER 300 Watchco 165.024 166.0324 cal.552 w/ oem bracelet

OMEGA SEAMASTER 300 Watchco 165.024 166.0324 cal.552 w/ oem bracelet

This is a legendary Watchco Omega Seamaster, one of only a handful of NOS examples in the world at the time. It has been owned for 5 years and was last serviced when purchased.

  • Condition: Pre-owned with minor scratches/scuffs
  • Bracelet origin: Lewis Jewelers in Ann Arbor, MI
  • Clasp condition: light 'desk diving' scuffs
  • Crystal condition: some scuffs (buffable with Polywatch)
Posted at
Jan 3, 2026, 2:40 PM
Active
[WTS] Omega Seamaster 300m 2562.20

Omega Seamaster 300m 2562.20

Omega - 2562.20 · $1,375
This Omega Seamaster professional diver 300m features a Quartz movement and is available for sale.

  • Condition: excellent with minor signs of wear
  • Movement: quartz movement
  • Currency Euro: euro
  • Currency Usd: us dollar
Posted at
Jan 2, 2026, 5:51 PM
Active
[WTS] Omega Seamaster 300M Professional No-Date 🔥 AUG 2025 💎 Excellent Full Kit

Omega Seamaster 300M Professional No-Date 🔥 AUG 2025 💎 Excellent Full Kit

This Omega Seamaster Professional No-Date features a 300m water resistance and 42mm case size, available in excellent condition with a full kit.

  • Condition: Excellent
  • Case size: 42mm
  • Water resistance: 300m
Posted at
Jan 2, 2026, 5:25 PM
Active
[WTS] Omega Bond Seamaster 300 2541.80 Quartz 41mm - $1550 SHIPPED

Omega Bond Seamaster 300 2541.80 Quartz 41mm - $1550 SHIPPED

This Omega Bond Seamaster 300 is a 41mm Quartz Diver featured in the 1995 Golden Eye movie, available for purchase at a steal price.

  • Condition: Used with wear on the bracelet and some minor nicks/damage to the bezel/insert
  • Bracelet condition: decently worn, polished and stretched
  • Bezel condition: a few nicks
  • Insert condition: few scratches
Posted at
Dec 31, 2025, 4:01 PM
Active