Sea Auto 30 [42mm] Black

Sale price$525.00 USD 5.0

Band: Steel Bracelet

Before starting Momentum, our founder Simon and his family owned a watch company called Chronosport. In 1977, they launched one of the first-ever analog quartz diver’s watches, the Sea Quartz 30. The brand became so popular that it was soon sold in almost every serious dive store in the US and Canada. This watch was also famously worn by Tom Selleck in the first 3 seasons of the hit show Magnum PI.

Many customers have asked us whether we could make the original design with the steel case and add an automatic movement option. You asked. We listened.

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

  • Movement Japanese, Automatic (Miyota 9015)
  • Dial Color Black
  • Screw-down crown
  • Water Resistance 300 / 990

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.