Omega Seamaster Diver 300 M 210.30.42.20.03.001

This Omega Seamaster Diver 300M reference 210.30.42.20.03.001 is the signature blue-on-blue execution of Omega’s modern professional diver, pairing the 42mm steel case with a blue ceramic bezel and laser-engraved blue wave dial. The combination of the skeletonized hands, luminous markers, helium escape valve, and stainless steel bracelet gives it the versatility of a true daily sports watch while retaining the distinctive visual language of the Seamaster line. This pre-owned 2020 example is offered in excellent overall condition with original box, full card set, and operating instructions.

Condition: Pre-owned, excellent overall condition. The stainless steel case, blue ceramic bezel, sapphire crystal, blue wave dial, bracelet, and fold clasp present cleanly in the detailed photography, with only light handling wear visible under close inspection. Bracelet is short one link.

Set: Original Omega outer box and presentation box, International Warranty card, Master Chronometer card, Pictograms card, card holder, operating instructions, and accompanying accessories as pictured.

Case: 42mm stainless steel case, approximately 13.6mm thick, with blue ceramic unidirectional rotating bezel, sapphire crystal, sapphire display back, screw-down crown, and helium escape valve. Water resistant to 300 meters / 30 ATM / 1,000 feet.

Dial: Blue dial with Omega’s signature laser-engraved wave pattern, applied luminous hour markers, skeletonized luminous hands, central seconds hand with red tip, and date display at 6 o’clock. The matching blue ceramic bezel provides a crisp 60-minute diving scale, while the lume photo shows strong, even illumination across the dial and hands.

Movement: Automatic Omega Co-Axial Master Chronometer calibre 8800, an in-house movement with 35 jewels, 25,200 vph frequency, and 55-hour power reserve, visible through the sapphire display back.

Strap/Bracelet: Stainless steel bracelet with brushed and polished finishing, secured by a steel fold clasp. The integrated bracelet profile gives the watch a robust, comfortable, and versatile wrist character.

Please review all photos for the most accurate representation of this watch's condition. Our macro photography is designed to capture every detail, including the smallest imperfections, ensuring you can buy with complete confidence.

We ship fully insured overnight via FedEx for your peace of mind. We are happy to arrange a video call to show the watch and answer any questions—just reach out anytime. We guarantee the authenticity and accuracy of all our timepieces. Your satisfaction is our highest priority, and we strive for a smooth, transparent, and 100% positive transaction.

As a dedicated hockey coach and passionate timepiece collector (@pucks_timepieces), I've spent years immersed in the world of horology. I now combine this passion with my hockey-playing daughters, and together we create the unique presentations you see here. Our photography is inspired by contemporary artists like KAWS, Banksy, Joan Cornellà, Death NYC, and Shepard Fairey, adding a distinctive, creative character to how each watch is presented.

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• Founder & President of the Hands of Time Scholars Foundation - a nonprofit providing financial support for the next generation of watchmakers.
• Limited inventory available for viewing and purchase through Chalmers Jewelers in Middleton, WI.

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