30th Anniversary Limited Edition Collection

The first release

30 years. Limited to 300.

Limited Edition Symbios Dive Computer. Only 300 individually numbered units worldwide, with a distinctive band.

Reserve Yours

The Limited Edition celebrates Halcyon’s 30th anniversary with exclusive design details, individual numbering, and depth-resistant buttons.

Symbios 30th anniversary limited-edition computer

Anniversary Design

The glass features Halcyon’s 30th Anniversary logo and a subtle contour-line pattern. Blue screws frame the display, adding a signature color accent against the black housing.

Individually Numbered

Each computer carries its own X/300 marking, identifying its place in a limited run of just 300 units worldwide.

Deep-rated Buttons

The Limited Edition features depth-resistant button springs rated to 150 m.

Be part of our story

Reserve Yours

Limited to 300 worldwide. Make the limited-edition Symbios part of your next chapter of exploration.

Reserve Now

Symbios Technology

Built on the Symbios Silver

Explore Symbios Silver

The Limited Edition shares the Symbios Silver’s core features, including customizable screen layouts, wireless connectivity with Symbios-enabled devices, and a trim indicator that helps you monitor your position in the water. Training modes let you explore the computer’s functions and practice diving scenarios.

Anniversary Swag

30 Years of Halcyon

Thirty years of exploration, with more ahead. Celebrate with tees, caps, and everyday pieces for life between dives.

Shop The Collection

30 Years of Halcyon Anniversary Collection

Halcyon 30 Years Logo Unisex Tee

Halcyon 30 Years Crop Tee

Halcyon Blue Pearl Logo Tote

30 Years Worldwide Long Sleeve Tee

Halcyon 1996–2026 Anniversary Tee

30 Years Worldwide Crop Tee – Color

The first release

30 years. Limited to 300.

Limited Edition Symbios Dive Computer. Only 300 individually numbered units worldwide, with a distinctive band.

Reserve Yours

The Limited Edition celebrates Halcyon’s 30th anniversary with exclusive design details, individual numbering, and depth-resistant buttons.

Anniversary Design

The glass features Halcyon’s 30th Anniversary logo and a subtle contour-line pattern. Blue screws frame the display, adding a signature color accent against the black housing.

Individually Numbered

Each computer carries its own X/300 marking, identifying its place in a limited run of just 300 units worldwide.

Deep-rated Buttons

The Limited Edition features depth-resistant button springs rated to 150 m.

Be part of our story

Reserve Yours

Limited to 300 worldwide. Make the limited-edition Symbios part of your next chapter of exploration.

Reserve Now

Symbios Technology

Built on the Symbios Silver

Explore Symbios Silver

Anniversary Swag

30 Years of Halcyon

Thirty years of exploration, with more ahead. Celebrate with tees, caps, and everyday pieces for life between dives.

Shop The Collection

Halcyon 30 Years Logo Unisex Tee

Halcyon 30 Years Crop Tee

Halcyon Blue Pearl Logo Tote

30 Years Worldwide Long Sleeve Tee

Halcyon 1996–2026 Anniversary Tee

30 Years Worldwide Crop Tee – Color