Collaborated with the Dolphin Project, Spinnaker's Croft Mid-Size Dolphin Project Limited Edition celebrates one of the ocean's most intelligent and beloved animals — the dolphin. At the heart of the design lies a beautifully textured wave-pattern dial where a group of dolphins swim; by day the dial reflects the rhythm of the ocean, and by night Swiss Super-LumiNova illuminates the dolphins so they appear to swim across the dial in the dark. The line launches in three colourways — Sunrise Splash (orange), Dolphin Cave (green), and Aqua Play (blue) — each limited to 425 pieces, with 10% of net sales going directly to Dolphin Project's global campaigns to protect dolphins worldwide.

Every colourway shares the same 40mm stainless steel case, 14.1mm thick with a 47mm lug-to-lug, fitted with a screw-down crown and an anti-reflection coated sapphire lens. The 20mm stainless steel bracelet closes with a fold-over buckle that includes a safety lock and push button, and each watch also ships with a colour-matched RPET strap made from recycled ocean plastic — black for Sunrise Splash, grey for Dolphin Cave, and blue for Aqua Play.

Power comes from a Japanese Miyota 8215 automatic movement with three hands and a date function, keeping the focus on the dial's wave-pattern artwork rather than added complications. Applied indexes filled with Swiss Super-LumiNova keep the dolphins visible after dark, and the watch is rated to 15 ATM of water resistance and backed by a 2-year international warranty.