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

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
Omega Seamaster 300M - Summer Blue - 42mm - 210.30.42.20.03.003 ( mint )

Omega Seamaster 300M - Summer Blue - 42mm - 210.30.42.20.03.003 ( mint )

Up for sale is a mint condition Omega Seamaster 300M 42mm Summer Blue Dial on Bracelet, complete with all boxes, papers, booklets, hang tag and Omega Warranty Card.

  • Condition: Mint Condition
  • Case size: 42mm
  • Movement type: 8800 Master Co-Axial
  • Shipping cost international: 150
Posted at
Apr 3, 2025, 3:14 PM
Active
Omega Seamaster 300M Black Black - Diver - 210.92.44.20.01.003 ( mint )

Omega Seamaster 300M Black Black - Diver - 210.92.44.20.01.003 ( mint )

This Omega Seamaster 300 is a black ceramic diver's watch with a wave dial, featuring a 43.5mm case and the Master Co-Axial movement. It comes with all original boxes and papers.

  • Condition: Mint Condition
  • Case material: Black Ceramic
  • Movement: 8806 Master Co-Axial Movement
  • Size: 43.5mm diameter
Posted at
Apr 2, 2025, 3:09 PM
Active
2023 Omega Seamaster 300m Ref: 210.32.42.20.10.001 Green Dial "Seaweed" w/ B+P

2023 Omega Seamaster 300m Ref: 210.32.42.20.10.001 Green Dial "Seaweed" w/ B+P

This 2023 Omega Seamaster 300m features a 42mm case, green ceramic bezel, and a green wave dial with Luminova markers.

  • Condition: Excellent with light wear
  • Case size: 42mm diameter
  • Serial number: A,1XX,XXX
  • Accessories: inner and outer boxes, warranty cards, card holder, receipt, booklet
Posted at
Mar 31, 2025, 7:24 PM
Active
LNIB Omega Seamaster 300 Heritage Black 41mm Steel Bracelet 2017 Complete

LNIB Omega Seamaster 300 Heritage Black 41mm Steel Bracelet 2017 Complete

A 2017 Omega Seamaster 300 Heritage in black with a 41mm steel bracelet and liquidmetal bezel, featuring the Caliber 8840 self-winding movement.

  • Condition: Like New (LNIB)
  • Movement caliber: 8840
  • Bracelet material: steel
Posted at
Mar 31, 2025, 1:35 PM
Active
LNIB Omega Seamaster 300 Pro 43.5mm Ceramic Case Rubber Strap 2022 Complete

LNIB Omega Seamaster 300 Pro 43.5mm Ceramic Case Rubber Strap 2022 Complete

A 2022 Omega Seamaster 300 Professional diver's watch with a ceramic/titanium case and rubber strap, featuring a Master Chronometer Omega Caliber 8806.

  • Condition: Like New Condition
  • Case material: Ceramic/Titanium
  • Case diameter: 43.5mm
  • Band type: Rubber Strap
Posted at
Mar 31, 2025, 1:30 PM
Active
2022 Omega Heritage Seamaster 300, Blue Dial (Full Set) Warranty Through 7/7/2027

2022 Omega Heritage Seamaster 300, Blue Dial (Full Set) Warranty Through 7/7/2027

This Omega Heritage Seamaster 300 features a stunning blue sandwich dial with vintage Super-LumiNova indices and rhodium-plated hands. The watch is in excellent condition, with minor superficial signs of use on the bracelet.

  • Condition: Excellent
  • Case material: 316L Stainless Steel
  • Bezel material: Oxalic Acid Anodized Aluminium
  • Water resistance: 300m
Posted at
Mar 29, 2025, 5:55 PM
Active
2023 Omega Seamaster 300m Ref: 210.32.42.20.10.001 Green Dial "Seaweed" w​/​ B+P

2023 Omega Seamaster 300m Ref: 210.32.42.20.10.001 Green Dial "Seaweed" w​/​ B+P

2023 Omega Seamaster 300m Ref: 210.32.42.20.10.001 Green Dial 'Seaweed' is a 42mm dive watch with excellent condition green ceramic bezel and Luminova markers.

  • Condition: Excellent with minor wear
  • Case size: 42mm
  • Serial number: A,1XX,XXX
  • Accessories included: inner and outer boxes, warranty cards, card holder, receipt, booklet
Posted at
Mar 26, 2025, 7:19 PM
Active