Spinnaker issues some of the best affordable dive watches around, and they’ve just dropped a new collab piece that works with the Marine Conservation Society, a UK-based organization that works to protect the ocean. Set to launch on June 8th, World Ocean Day, the Hass X MCS Limited Edition pays tribute to Austrian marine biologist Hans Hass. There are two models that are inspired by ocean hues. The brightly-colored dive watch has a 43mm case that’s depth rated to 300 meters, so it’s ready for ocean exploration. The layered dial is matte-finished for minimal reflection, and it also has the right dive-friendly details like a unidirectional bezel, sapphire glass, Swiss Super LumiNova, and a screw-down crown. It even comes with an rPET recycled plastic nylon strap. Power comes from a 21-jewel Japanese automatic movement. It’s a special watch that pays a percentage of sales directly to the Marine Conservation Society.