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A silver OMEGA Seamaster Diver 300 watch featuring a black dial, mesh strap, and white hour markers.
Back view of the OMEGA Seamaster Diver 300, featuring its exposed mechanical movement and stainless steel mesh strap.
Close-up of an OMEGA Seamaster Diver 300 watch featuring a black dial, white markers, and a stainless steel mesh band.
A silver OMEGA Seamaster Diver 300 watch featuring a black dial, mesh strap, and white hour markers.
Back view of the OMEGA Seamaster Diver 300, featuring its exposed mechanical movement and stainless steel mesh strap.
Close-up of an OMEGA Seamaster Diver 300 watch featuring a black dial, white markers, and a stainless steel mesh band.
A silver OMEGA Seamaster Diver 300 watch featuring a black dial, mesh strap, and white hour markers.
Back view of the OMEGA Seamaster Diver 300, featuring its exposed mechanical movement and stainless steel mesh strap.
Close-up of an OMEGA Seamaster Diver 300 watch featuring a black dial, white markers, and a stainless steel mesh band.

OMEGA Seamaster Diver 300

O21030422001018 42 mm
View Specs
Regular price $7,300
Starting at    /mo or 0% APR with Affirm .

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    Authorized Luxury Retailer
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    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 $300 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 for orders over $300 USD. 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.

    *Additional shipping fees may apply to domestic orders shipped outside the continental United States.

    $15 Flat Fee on Orders Under $300 (Estimated 1 - 2 weeks)

    Monday through Friday, 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 $300.
    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, free of cost*.

    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.

    *For order under $300 and all international returns:

    Return Shipping: Clients are responsible for shipping items back to our U.S. facility, including all associated costs such as duties, taxes, and carrier fees.

    Refunds/exchanges only in the country of purchase.

    Please refer to our Return Policy for details on eligible items, return timeframes, and conditions.

    Easy Returns

    Easy Returns

    Purchase with confidence with our simple return policy.

    OMEGA Seamaster Diver 300 - (Ref. O21030422001018) Product Details

    This 42mm model is crafted in robust stainless steel and features a striking black anodized aluminum bezel ring, complete with a white Super-LumiNova diving scale for enhanced visibility. The black aluminum dial is designed with rhodium-plated, skeletonized hands and indexes, all filled with white Super-LumiNova for optimal legibility in low light.

    Signature orange accents highlight the central seconds hand, the four quarter-hour indexes, and the Seamaster name, adding a bold and sporty touch. The OMEGA logo is presented in crisp white for a clean, sophisticated finish.

    General

    Condition

    New

    Brand

    OMEGA

    Reference

    O21030422001018

    Product Code

    17332409

    Power Reserve

    55 Hours Approx

    Features

    Date display
    Automatic movement
    Waterproof

    Case

    Case Size

    42 mm

    Case Depth

    14 mm

    Case Shape

    Round

    Case Material

    Steel

    Bezel Material

    Steel

    Bezel Color

    Black

    Crystal

    Sapphire

    Dial

    Dial Color

    Black

    Dial Texture

    Plain

    Dial Markers

    Dots

    Stone Set

    No

    Movement

    Type

    Auto

    In-house Movement

    Yes

    Bracelet

    Type

    Bracelet

    Material

    Steel

    Stone Set

    No

    Buckle

    Pin

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

    Explore OMEGA

    The OMEGA collection of watches epitomizes a blend of timeless elegance and cutting-edge innovation. From the legendary Speedmaster, the inaugural watch on the moon, to the iconic Seamaster, beloved by secret agents, each timepiece effortlessly integrates sophisticated design with unparalleled precision. Whether you're captivated by the vintage charm of the Constellation or the dynamic allure of the Planet Ocean, OMEGA presents a diverse array of watches, each narrating a distinctive tale of craftsmanship and style.

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