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Close-up of an Omega Pre Seamaster Cal. 283 wristwatch with a weathered cream dial, dark hour markers, and two black hands, set in a metallic case with a light blue textured strap against a dark background.
Close-up of an Omega Pre Seamaster Cal. 283 watch with a weathered face, featuring a vintage logo, black hour numerals, and sturdy Cal. 283 movement. Black hour and minute hands complement its worn blue band, enhancing its timeless character.
A side view close-up of an Omega Pre Seamaster Cal. 283 watch highlights the engraved logo on its crown. The metal case and light-colored strap stand out against a dark background, creating a striking contrast.
Close-up side view of an Omega Pre Seamaster Cal. 283 with a round metallic case and light blue strap, its face slightly obscured to emphasize the sleek, minimalist design against a dark background.
A close-up of the back of an Omega Pre Seamaster Cal. 283 wristwatch, showcasing its silver casing and light blue suede strap against a black textured background, emphasizing its elegance and precision.
A close-up of a silver watch buckle engraved with ACIER INOX and SWISS evokes the Omega Pre Seamaster Cal. 283 legacy. The buckle is attached to a light blue strap against a textured dark background.
A silver metal buckle on a light blue leather strap with white stitching peeks through against a textured black background, echoing the Omega Pre Seamaster Cal. 283 style.
A vintage Omega Pre Seamaster Cal. 283 wristwatch with a faded Arabic numeral dial and a silver case is shown. Its attached to a light blue leather strap and displayed on a black, textured surface.
Close-up of an Omega Pre Seamaster Cal. 283 vintage wristwatch with a silver case, beige dial, black numerals and hands, on a light blue leather strap against a dark background.
Close-up of an Omega Pre Seamaster Cal. 283 watch movement, showcasing visible gears and screws. The intricate mechanism with the 17 Jewels inscription features a blend of metallic finishes against a dark textured background, all encased in a metallic frame.
The image shows the back of an Omega Pre Seamaster Cal. 283 watch case with engravings like Acier Inoxydable, Omega Watch Co, Fab. Suisse, and 2504-9. It is paired with a blue strap featuring white stitching against a black background.
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Omega Pre Seamaster Cal. 283

$1,049.99

Reference

2504-9
Diameter

36mm
Movement

Manual Wind
THE OTTUHR GUARANTEE

Vintage & Pre-Owned Guarantee

Authenticity:

All vintage and pre-owned timepieces sold by Ottuhr are guaranteed to be 100% authentic and original. This means that we have inspected each part of the watch to confirm it is from the manufacturer and has not been tampered with.

Condition:

Given that our timepieces are vintage or pre-owned, some wear and patina from usage and age should be expected. We encourage you to read each item description and carefully examine all product images before making a purchase. Our high-resolution images are an integral part of the description

1-Year Warranty:

Each timepeice is backed with a one-year mechanical warranty from the date of purchase. Each piece is thoroughly evaluated and authenticated by our timepiece specialists, and, if necessary, undergoes service or maintenance prior to sale. All watches are sold in proper working condition, operating and functioning as intended. Most of our timepieces feature manual winding or automatic movements, which may not be as accurate as modern quartz. Please note that none of our timepieces are guaranteed to be water-resistant, and customary care is always essential.Our warranty may be voided under the following conditions: internal or external damage caused by accidents, mishandling, abusive treatment, modifications, or any repairs or tampering by unauthorized third parties. This warranty is non-transferable.

 

FREE RETURNS & SHIPPING

We glady cover the cost of insured shipping for any order over $50, and offer express shipping methods at checkout for an additional fee. If, for any reason, you are not entirely satisfied with your purchase or its implementation, you may return the product for a full refund within 14 days from the date you received and signed for the item. Read Our Full Return Policy

 

1-YEAR WARRANTY

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Thank you for your interest in the Omega Pre Seamaster Cal. 283. Please fill out the form below and we will get back to you shortly.
SKU: OT010

The Omega Pre-Seamaster Ref. 2504-9 is a captivating piece that represents Omega’s early dive into creating elegant, durable timepieces that would later influence the iconic Seamaster line. Powered by the Omega Caliber 283, part of the renowned 30mm manual-winding series, this movement is known for its reliability and precision. The Pre-Seamaster models are celebrated for their role in shaping Omega’s future dive watches, offering both style and substance in a compact form. This specific reference, dating back to the 1940s-50s, showcases the brand’s commitment to excellence and mechanical innovation during the post-war era.

The watch features a charmingly patinated dial, with warm cream tones that have developed over time, adding to its vintage allure. Its 36mm stainless steel case offers a balanced, understated presence on the wrist, while the dial’s Arabic numerals at 12, 3, 6, and 9 o’clock create a clear and symmetrical layout. The sharp dauphine hands retain their polished appeal, standing out against the aged dial. Paired with a soft blue suede strap and the original Omega buckle, this timepiece exudes both vintage character and modern-day wearability. The combination of its historical significance, mechanical robustness, and aesthetic appeal makes the Omega Pre-Seamaster Ref. 2504-9 a sought-after collector’s piece.

Specifications

• Brand: Omega

• Model: Pre-Seamaster Ref. 2504-9

• Movement: Omega Caliber 283 (Manual-winding)

• Case Material: Stainless steel

• Case Width: 36mm

• Lug-to-Lug Length: Approx. 42mm

• Lug Width: 18mm

• Dial: Cream with patina, Arabic numerals at 12, 3, 6, and 9

• Strap: Blue suede strap with original Omega buckle

• Country of Manufacture: Switzerland

Condition
What's Included
Ottuhr Velvet Travel Case & Box
Trusted Across The Globe

OTTUHR

Over 1,000 timepieces sold since our launch in November 2023.

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