Sea Auto 30 [42mm] Black
Sea Auto 30 [42mm] Black
Sea Auto 30 [42mm] Black

Sea Auto 30 [42mm] Black

Sale price$495.00 USD
Band: Black Oceanflex Rubber

The automatic evolution of a cult classic.

Inspired by the Sea Quartz 30 worn in Magnum P.I., the Sea Auto 30 brings mechanical heart to a proven design. With a slim profile, smooth sweep, and robust Japanese movement, this automatic diver blends vintage character with modern reliability.

✅ Miyota 9015 Automatic Movement – Slim, high-beat, and ultra-reliable—with a 42-hour power reserve.
✅ Domed Sapphire Crystal – Scratch-resistant with vintage-inspired curvature.
✅ 300M Water Resistance – Screw-down crown and caseback for true dive capability.
✅ Super-LumiNova® Lume – Bright and long-lasting for optimal low-light visibility.
✅ Classic Diver Case – Based on the original Magnum P.I. silhouette from the 1980s.

Interested in the original Sea Quartz 30 design with the classic (battery-powered) Swiss-made quartz movement? Click HERE.

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  • Movement Japanese, Automatic (Miyota 9015)
  • Dial Color Black
  • Screw-down crown
  • Water Resistance 300 / 990
  • SKU: 054AADAHB-AB-B-AC-B-CZK-AB-AB-B-B
  • Battery: N/A (Mechanical Movement)

Inspired by Icons

Before founding Momentum, our founder, Simon, was at the helm of the renowned watch company, Chronosport. Their iconic UDT model gained worldwide recognition for its durability and reliability, worn by elite military units and Hollywood stars like Sylvester Stallone in Rambo III. Similarly, the Sea Quartz 30, made famous by Tom Selleck in Magnum P.I., became a symbol of timeless style.

To honor this rich heritage, we’re thrilled to introduce the Sea Auto 30. This modern reinterpretation of the original Sea Quartz 30 combines the classic design elements that captivated audiences with the advanced features of today’s watchmaking.

Reliable Automatic Movement

Powered by a premium Miyota 9015 automatic movement, the Sea Auto 30 offers a blend of style and performance. This Japanese-made movement features a 42-hour power reserve, 28,800 beats per hour, and 24 jewels for exceptional reliability. With its sleek, rounded steel case and subtle design, this dive watch is both elegant and durable. Enjoy the convenience of automatic and manual winding, quick-set date, and hacking functionality.

WE DO THINGS OUR WAY.

St. Moritz Watch Corp. designs, assembles and services high quality sports watches under the MOMENTUM® brand. As life becomes more active and a more casual style becomes the norm, our straightforward designs, with outstanding waterproof performance and no-BS pricing, resonate more and more with active people everywhere.

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