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The OMEGA Seamaster 300 Summer Blue’s stainless steel caseback is engraved with a seahorse and rider, Seamaster Since 1948, water resistance info, and Co-Axial Master Chronometer Calibre 8912 details in striking Summer Blue.
A close-up of the OMEGA Seamaster 300 Summer Blue, showcasing its blue dial and bezel, stainless steel bracelet, and Co-Axial Master Chronometer calibre 8912.
Close-up of the caseback of the OMEGA Seamaster 300 Summer Blue, crafted in stainless steel with an engraved image and Seamaster Since 1948 on the edge, spotlighting its Co-Axial Master Chronometer calibre 8912.
Close-up of the OMEGA Seamaster 300 Summer Blues stainless steel bracelet and case, featuring a blue bezel and detailed links, with part of the watch face and numerals, crafted to Master Chronometer standards.
Close-up of the OMEGA Seamaster 300 Summer Blue, featuring a vibrant blue gradient dial, white hour markers, and silver hands, displaying the time at 10:09:38.
An individual wearing the OMEGA Seamaster 300 Summer Blue—with a blue dial and bezel, stainless steel silver bracelet, and Co-Axial Master Chronometer calibre 8912—on their left wrist, paired with a gray knit sweater.
The OMEGA Seamaster 300 Summer Blue features a stainless steel case, Summer Blue bezel and dial, silver hour markers, metal bracelet, shows 10:10, and is powered by the Co-Axial Master Chronometer calibre 8912.
The OMEGA Seamaster 300 Summer Blue’s stainless steel caseback is engraved with a seahorse and rider, Seamaster Since 1948, water resistance info, and Co-Axial Master Chronometer Calibre 8912 details in striking Summer Blue.
A close-up of the OMEGA Seamaster 300 Summer Blue, showcasing its blue dial and bezel, stainless steel bracelet, and Co-Axial Master Chronometer calibre 8912.
Close-up of the caseback of the OMEGA Seamaster 300 Summer Blue, crafted in stainless steel with an engraved image and Seamaster Since 1948 on the edge, spotlighting its Co-Axial Master Chronometer calibre 8912.
Close-up of the OMEGA Seamaster 300 Summer Blues stainless steel bracelet and case, featuring a blue bezel and detailed links, with part of the watch face and numerals, crafted to Master Chronometer standards.
Close-up of the OMEGA Seamaster 300 Summer Blue, featuring a vibrant blue gradient dial, white hour markers, and silver hands, displaying the time at 10:09:38.
An individual wearing the OMEGA Seamaster 300 Summer Blue—with a blue dial and bezel, stainless steel silver bracelet, and Co-Axial Master Chronometer calibre 8912—on their left wrist, paired with a gray knit sweater.
The OMEGA Seamaster 300 Summer Blue features a stainless steel case, Summer Blue bezel and dial, silver hour markers, metal bracelet, shows 10:10, and is powered by the Co-Axial Master Chronometer calibre 8912.
The OMEGA Seamaster 300 Summer Blue’s stainless steel caseback is engraved with a seahorse and rider, Seamaster Since 1948, water resistance info, and Co-Axial Master Chronometer Calibre 8912 details in striking Summer Blue.
A close-up of the OMEGA Seamaster 300 Summer Blue, showcasing its blue dial and bezel, stainless steel bracelet, and Co-Axial Master Chronometer calibre 8912.
Close-up of the caseback of the OMEGA Seamaster 300 Summer Blue, crafted in stainless steel with an engraved image and Seamaster Since 1948 on the edge, spotlighting its Co-Axial Master Chronometer calibre 8912.
Close-up of the OMEGA Seamaster 300 Summer Blues stainless steel bracelet and case, featuring a blue bezel and detailed links, with part of the watch face and numerals, crafted to Master Chronometer standards.
Close-up of the OMEGA Seamaster 300 Summer Blue, featuring a vibrant blue gradient dial, white hour markers, and silver hands, displaying the time at 10:09:38.
An individual wearing the OMEGA Seamaster 300 Summer Blue—with a blue dial and bezel, stainless steel silver bracelet, and Co-Axial Master Chronometer calibre 8912—on their left wrist, paired with a gray knit sweater.

OMEGA Seamaster 300 Summer Blue

O23430412103002 41 mm
View Specs
Regular price $7,800
Starting at /mo or 0% APR with Affirm .
Authorized Luxury Retailer
Rolex green flag outside the Watches of Switzerland store with cream columns and large windows.

Renowned for expertise in luxury watch retail, Watches of Switzerland embodies the highest standards of craftsmanship and service. With a history dating back to the 1700s, the company offers a curated selection of premier timepieces and commits to excellence in customer experience grounded in a legacy of trust and industry proficiency.

Authorized Luxury Retailer

Authorized Luxury Retailer

We are an authorized retailer for over 80 luxury watch brands.
Free Expedited Delivery
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Free Expedited Delivery on Orders $100 and Up (Estimated 1-3 Days)

Our secure shipping service operates Monday through Saturday, from 8:00 a.m. to 6:00 p.m. For security reasons, an adult signature is required for every delivery. Watches of Switzerland does not deliver to P.O. boxes or third-party forwarding services. For more information about delivery, click here. Tracking information will be made available upon shipping.

$15 Flat Fee on Orders Under $100 (Estimated 1 - 2 weeks)

Monday through Saturday, from 8:00 a.m. to 6:00 p.m. For more information about delivery, click here. Tracking information will be made available upon shipping.

If you have any questions or concerns regarding your order, please contact the Watches of Switzerland Client Services. 

Free Expedited Delivery

Free Expedited Delivery

We offer free, expedited delivery on all orders over $100.
Simple Easy Returns
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Our commitment to you does not end at delivery. We offer the following return services to make your experience as pleasant as possible.

10-Day Returns For Timepieces:

Timepieces purchased online can be returned or exchanged within 10 days from when they are shipped or collected.

30-Day Returns For All Other Purchases:

All other online purchases can be returned or exchanged within 30 days from when they are shipped or collected.

On presentation of the original receipt, your purchases may be returned or exchanged at any of our store locations. Alternatively, you may elect shipping to our facility with all the original paperwork. All refunds must be credited to the same tender used for the original purchase. To return the online purchases through secure shipping service, please contact our client service team who will provide you the shipping label.

All returns or exchanges must be in new, unworn condition, with no scratches or markings, not sized or adjusted and in their original packaging and with warranty cards / certificated and instruction booklets.

Simple Easy Returns

Simple Easy Returns

Purchase with confidence with our simple, free return policy.

Details

Seamaster 300 - an updated icon Symmetrical 41mm case and bracelet in stainless steel Summer Blue varnished dial with a gradient finish Blue bezel with a summer blue diving scale s Powered by a Co-Axial Master Chronometer calibre 8912 movement AN UPDATED 1950s ICON First created in 1957, the Seamaster 300 is one of the most famous watches in underwater history. The updated models embrace a new, vintage-inspired design that embraces the past whilst also offering the very best in modern precision. While staying true to the heritage look, the new design provides a slenderer aesthetic, thanks to domed sapphire glass, alongside a thinner bezel crafted from an oxalic, anodized-treated aluminium. SUMMER BLUE The sleek Summer Blue dial features rhodium-plated hands, recessed hour markers, and open numerals, all filled with a unique light blue Super-LumiNova for incredible visibility. Mirroring the tones of the dial, the blue ceramic bezel features a summer blue enamel diving scale, while on the reverse, the case back features a stamped, commemorative Seamaster logo. The 41mm stainless steel case fastens securely with a steel bracelet. Powered by a Co-Axial Master Chronometer calibre 8912 movement, this timepiece is also water resistant to 300 metres.

General

Condition

New

Brand

OMEGA

Reference

O23430412103002

Product Code

17332153

Power Reserve

60 Hours Approx

Features

Deployment clasp
Automatic movement
Waterproof

Case

Case Size

41 mm

Case Depth

14 mm

Case Shape

Round

Case Material

Steel

Bezel Material

Ceramic

Bezel Color

Blue

Crystal

Sapphire

Dial

Dial Color

Blue

Dial Texture

Wave

Dial Markers

Arabic & Batons

Stone Set

No

Movement

Type

Auto

Bracelet

Type

Bracelet

Stone Set

No

Buckle

Deployment

A person in a suit adjusts their collar, wearing a silver luxury wristwatch with a black bezel.

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