Skip to product information
Omega Seamaster 300 41mm Steel Summer Blue Dial 234.30.41.21.03.002

Omega Seamaster 300 41mm Steel Summer Blue Dial 234.30.41.21.03.002 Omega Seamaster 300 41mm Steel Summer Blue…

Reference 234.30.41.21.03.002

Full watch configuration

Omega Seamaster 300 41mm Steel Summer Blue Dial 234.30.41.21.03.002

$7,055.00

By Omega

Sourced to order. We confirm the watch, condition and final price before purchase. Reference images shown.

Eligible watches: 90-day returns for store credit only. Brand-new watches and other exclusions are final sale. Return terms.

Omega Seamaster 300 41mm Steel Summer Blue Dial 234.30.41.21.03.002

Omega Seamaster 300 41mm Steel Summer Blue Dial 234.30.41.21.03.002

Current Catalogue Asking Price:

Your Offer

$

Submit your offer for review. Availability and the final price require confirmation.

Preferred Contact Method
I have a trade-in / add a note

Reserve with $200

Omega Seamaster 300 41mm Steel Summer Blue Dial 234.30.41.21.03.002

Catalogue watch price: $7,055.00 USD

Your $200 deposit is applied to the watch’s purchase price. It is refundable only if Bizak & Co. cannot fulfill your order.

Estimated remaining balance: $. Pay by bank wire or cryptocurrency after we confirm your watch and final invoice. Shipping and applicable taxes are additional.

Shipping details · Return terms

Watch shipping is paid with the final balance: $100 for U.S. overnight delivery or $500 internationally. Applicable taxes and import charges are additional.

After payment, our team starts the tailored search and contacts you to confirm the specific watch and final invoice. A deposit does not guarantee a unit, the listed price or a delivery date.

Need installments? Check eligibility before paying a deposit.

Speak with a Bizak & Co. specialist about this piece

|Call or Text

The Omega Seamaster 300 reference 234.30.41.21.03.002 is a 41mm stainless steel dive watch featuring a striking Summer Blue dial with index and Arabic numeral hour markers, a scratch-resistant ceramic bezel, and a matching stainless steel bracelet. Built on one of Omega's most celebrated diving lineages, this reference balances heritage aesthetics with modern materials for a timepiece that is as versatile as it is distinguished.

What sets this Seamaster 300 apart is the rare Summer Blue dial, which shifts in character under different lighting and delivers a depth and vibrancy seldom seen at this price point in Swiss luxury sport watches. Browse this reference now at Bizak & Co. or contact our team for personalized service and the best available price.

Compare it across every Seamaster 300 reference we carry, or browse the full Omega collection at Bizak & Co.

Buy this Seamaster 300, trade in your current watch, or sell us yours. Contact Bizak & Co. to make an offer or request a fair-market valuation.

Not the exact one you’re looking for?

Source your dream watch

Learn More

The Omega Seamaster 300 is one of the most storied dive watches in horological history, tracing its roots to 1957 when Omega introduced the original Seamaster 300 as part of its celebrated trio of professional tool watches. Revived and refined for the modern collector, the contemporary Seamaster 300 collection pays faithful tribute to those mid-century origins while incorporating the precision engineering and advanced materials that define Omega today. Reference 234.30.41.21.03.002 represents the line at its most visually compelling, offered here by Bizak & Co.

At 41mm in diameter, the stainless steel case strikes an ideal balance between vintage-inspired proportion and contemporary wrist presence. The case architecture draws directly from the 1957 blueprint — the broad, domed sapphire crystal, the cushion-influenced lug design, and the coin-edge case middle all echo the original — yet the execution is thoroughly 21st century, with polished and brushed finishing that catches the light beautifully from every angle.

The Summer Blue dial is undeniably the centerpiece of this reference. The rich, warm-toned blue shifts from deep navy in shade to a luminous cerulean in direct light, providing a chromatic depth that photographs can barely capture. Index and Arabic numeral hour markers, filled with Omega's proprietary Super-LumiNova, ensure legibility in all conditions and add a purposeful tool-watch character that complements the dial's elegance.

The ceramic bezel is both practical and refined. Ceramic resists scratches and retains its color far better than anodized aluminum over years of daily wear, making it the premium choice for a watch intended to be worn and appreciated rather than stored. The stainless steel bracelet — precisely finished to complement the case — seats comfortably on the wrist and benefits from Omega's robust deployment clasp system, making this an ideal companion from boardroom to dive site.

Powering the Seamaster 300 is an Omega automatic movement, reflecting the brand's commitment to in-house manufacture and co-axial escapement technology that reduces friction and extends service intervals compared to traditional lever escapements. Omega's Master Chronometer certification standard — applied across the Seamaster 300 line — subjects each movement to rigorous METAS testing for precision, magnetic resistance, and performance, giving owners confidence in a level of quality that goes well beyond standard COSC chronometer certification.

Bizak & Co. offers this Omega Seamaster 300 reference 234.30.41.21.03.002 at the best available price, backed by the expertise and trusted service of a dedicated luxury watch dealer. Whether you are buying your first serious Swiss sport watch or adding a blue-dial icon to an established collection, this is a reference that rewards every day it is worn. Contact Bizak & Co. today to purchase online or speak with a specialist.

Technical Details
Reference
234.30.41.21.03.002
Model
Seamaster 300
Movement
Automatic
Case material
Stainless Steel
Bracelet material
Stainless Steel
Dial
Summer Blue with index and Arabic numerals
Case size
41mm
FAQ

1. What makes the Omega Seamaster 300 ref. 234.30.41.21.03.002 special?
This reference combines the iconic 1957-inspired Seamaster 300 design with a rare Summer Blue dial, scratch-resistant ceramic bezel, and Omega's advanced co-axial automatic movement package. The Summer Blue dial gives it a distinctly premium, eye-catching character that sets it apart from more common blue-dial sport watches in its class.

2. What movement powers the Omega Seamaster 300 234.30.41.21.03.002?
This Seamaster 300 is powered by an Omega automatic movement featuring the brand's co-axial escapement technology, which reduces friction and extends service intervals. Omega's Master Chronometer certification ensures the movement meets rigorous METAS standards for accuracy and magnetic resistance.

3. What is the case size of this Omega Seamaster 300?
The case measures 41mm in diameter and is crafted from stainless steel with a combination of polished and brushed finishing. This size offers a versatile, contemporary fit that works equally well on a range of wrist sizes and suits both casual and formal settings.

4. Is the Omega Seamaster 300 suitable for everyday wear?
Absolutely — the Seamaster 300 is built as a professional-grade dive watch with a ceramic bezel, robust stainless steel construction, and a sapphire crystal, making it highly resistant to scratches and daily wear. Its classic-yet-sporty design transitions effortlessly from professional environments to weekend adventures.

5. What is the dial like on reference 234.30.41.21.03.002?
The dial is finished in a Summer Blue tone that shifts dynamically between deep navy and vibrant cerulean depending on the light, creating a visually rich, ever-changing appearance. Hour markers combine indexes and Arabic numerals filled with Super-LumiNova for strong legibility in low-light or underwater conditions.

6. Is the Omega Seamaster 300 234.30.41.21.03.002 a good buy, and how can I get one from Bizak & Co.?
Yes — the Seamaster 300 in this Summer Blue configuration is a highly sought-after reference that holds its desirability thanks to its heritage pedigree, advanced materials, and striking aesthetics. You can buy this reference online at bizakandco.com or contact Bizak & Co. directly to speak with a specialist and confirm the best available price.

Certified Authenticity

Every watch is authenticated before delivery.

Real Family Business

You're buying from genuine people, 30 years in business.

Bizak & Co. Warranty

Every watch is checked by us before shipping.

5 Years Warranty

Our five-year Bizak & Co. warranty covers manufacturing defects affecting mechanical operation under normal use, starting on delivery. It is separate from any remaining manufacturer warranty.

Exclusions include accidental damage, misuse, water damage, cosmetic damage, normal wear, loss and theft. Coverage and service availability for vintage or modified watches are confirmed in writing before purchase.

Read the full warranty terms and service instructions. 

90-Day Returns for Store Credit

Eligible watches may be returned within 90 days for store credit. Brand-new watches and other exclusions are final sale.

Read eligibility, condition requirements, and exclusions.

Insured delivery

Insured shipping

U.S. overnight shipping is $100; international shipping is $500. Dispatch takes 2–3 business days after your wire clears. International transit times vary. Shipping details.

You might also like...

Customer Reviews

Read our reviews on Trustpilot

  • Great family business

    Great family business. They went out of their way to make my purchase go smoothly, they definitely earned my watch business!

    Paul

    Read on Trustpilot ↗
  • Good seller

    Good seller. Honest family

    Mateusz

    Read on Trustpilot ↗
  • Honest family company

    Honest family company. I’ve done business many times!

    Mollie

    Read on Trustpilot ↗
  • Trusted Seller

    Trusted Seller, Definitely recommend for all watches purchase!

    Consumer

    Read on Trustpilot ↗
  • Trusted and honest seller

    Trusted and honest seller. Deal with confidence.

    Jean Dib

    Read on Trustpilot ↗