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.
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 300 - Diver - White Dial - 210.32.42.20.04.001 ( new / 2024 )
This is a brand new Omega Seamaster 300 with a white dial, featuring a 42mm stainless steel case and an 8800 Master Co-Axial movement.
- Condition: Brand new
- Case size: 42mm
- Movement type: Master Co-Axial

Omega Seamaster 300 - Bond - 007 - No Time To Die - NTTD ( excellent )
This excellent condition Omega Seamaster 300 is a limited edition James Bond watch from the 'No Time to Die' movie. It features a 42mm titanium case and comes with all original boxes, papers, booklets, leather pouch, hang tag, and Omega Warranty Card dated February 2024.
- Condition: Excellent
- Case material: Titanium
- Case size: 42mm
- Movement: Limited Edition - James Bond No Time To Die

Omega Seamaster 300 - Green Wave Dial - 210.30.42.20.10.001 ( new / 2024 )
This Omega Seamaster 300 features a 42mm stainless steel case and an 8800 Master Co-Axial movement, with a green wave dial.
- Condition: Brand new
- Case size: 42mm diameter
- Movement type: Master Co-Axial

Omega Seamaster 300M - Grey / Titanium - 42mm - 210.30.42.20.06.002 ( new )
This Omega Seamaster 300 is a Master Chronometer with a stainless steel case and 8806 movement. It features a grey dial and titanium bezel on a bracelet.
- Condition: Brand new
- Case size: 42mm diameter
- Movement: Master Co-Axial Movement 8806
Omega Seamaster 300m 41mm Black NOS 212.30.41.20.01.003
A 2018 Omega Seamaster 300m in black, still with factory plastics and unworn.
- Condition: New Old Stock (NOS)
- Year Of Manufacture: 2018
- Warranty Length: 1 year

Omega Seamaster 300M - Blue Dial - 210.30.42.20.03.001 ( excellent / 2024 )
This Omega Seamaster 300 is a Master Chronometer with a 42mm stainless steel case, featuring a blue dial and bezel on a bracelet.
- Condition: Excellent
- Movement: 8800 Master Co-Axial Movement
- Case size: 42mm diameter
- Shipping options: Fedex Express within the US, International Shipping adds $150
2022 Omega Heritage Seamaster 300, Blue Dial (Full Set)
This Omega Heritage Seamaster 300 features a stunning blue sandwich dial and a rhodium-plated movement showcased through a sapphire caseback.
- Condition: Excellent, with minor superficial signs of use on the bracelet
- Movement: Omega Co-Axial Master Chronometer Calibre 8912, self-winding, METAS-certified chronometer
- Bezel material: Oxalic Acid Anodized Aluminium
- Depth rating: 300m water resistance

Omega Seamaster 300M SS 42MM Diver Summer Blue Wave Dial 210.30.42.20.03.003 B
Up for sale is an Omega Seamaster 300M SS 42MM Diver Summer Blue Wave Dial, in excellent condition. The timepiece includes various accessories such as the inner and outer box, booklet, serial hang tag, pictogram card, master chronometer card, and international Omega warranty card.
- Condition: Excellent
- Case Size: 42mm
- Material: Stainless Steel

OMEGA Seamaster 300m Chronometer 2551.80 36mm Medium Size Automatic watch
This is a 36mm medium size Omega Seamaster 300m Chronometer, an automatic watch that is functioning fine but could benefit from a light polish.
- Condition: Pre-owned, needs polish and potential service
- Size: 36mm diameter