Omega Seamaster Diver 300M 42mm Blue Wave Dial Stainless Steel Watch

Omega Seamaster Diver 300M 42mm Blue Wave Dial Stainless Steel Watch

This stunning Omega Seamaster Diver 300M is in excellent pre-owned condition and ready to ship!

The Omega Seamaster Diver 300M has been in continuous production since 1993, evolving with each generation while holding to its core brief: a Swiss-made, professional-grade dive watch fit for the water and equally at home anywhere above it. The current generation raised the bar considerably, introducing Omega's Co-Axial Master Chronometer movement — certified by METAS, the Swiss Federal Institute of Metrology, to withstand magnetic fields exceeding 15,000 gauss and to maintain accuracy within 0 to +5 seconds per day. That's a stricter standard than COSC alone. The 300-meter water resistance, helium escape valve, and unidirectional ceramic dive bezel confirm that the tool-watch credentials are genuine, not decorative.

This example is finished in an all-blue configuration that makes the most of Omega's ceramic dial technology. The wave-pattern surface catches light at changing angles, shifting from deep navy at the edges to a vivid gradient at center, with teal and cyan luminous indices that snap into focus the moment the light drops. The unidirectional rotating bezel is ceramic, virtually scratch-proof, and color-matched to the blue rubber strap. Through the exhibition caseback, the engraved seahorse medallion and the decorated rotor are both visible — a small but satisfying detail on a watch that rewards close attention. The original Omega box and 2025 purchase receipt accompany the piece, confirming it's essentially fresh from retail.

For the buyer who wants a modern Omega that functions as a genuine professional instrument without looking like one is trying too hard, this Seamaster Diver 300M is a straightforward answer. It's a watch that swims, travels, and works without demanding care in return.

Each piece is fully inspected and authenticated by Diamonds by Raymond Lee in Boca Raton.

Eligible merchandise may be returned within 14 calendar days of delivery, subject to our Return & Refund Policy. Custom or special-order pieces, and items engraved, sized or otherwise modified at your request, are final sale.

To request return authorization, email inquiry@diamondsbyraymondlee.com within the return window. Items must be unworn, in their original condition, and include all original packaging, certificates, accessories and gift items. Ship the return using a tracked, insured service no later than the 14th day after delivery. Customers pay return shipping and insurance.

Read our full Return & Refund Policy for all conditions and refund details.