The Spinnaker Croft Mid-Size Dolphin Project Limited Edition series blends purposeful dive watch engineering with meaningful marine conservation. This series consists of three models: SP-5177-11 (blue tone), SP-5177-22 (green tone), and SP-5177-33 (orange tone).
Spinnaker created this collection in collaboration with the Dolphin Project to protect global whale and dolphin populations. The partnership raises vital environmental awareness ahead of World Whale and Dolphin Day on July 23. Spinnaker donates 10% of all net sales directly to support global dolphin welfare campaigns.
Specification
Every watch in this limited lineup utilizes a solid and reliable 316L stainless steel case structure. The round case features a balanced diameter of 40mm, which fits nicely on most wrist sizes. A total thickness of 14.1mm provides a robust yet wearable presence on your wrist.
The lug to lug measurement spans exactly 47mm to ensure snug positioning during daily activities. A unidirectional rotating aluminium bezel sits on top of the steel case to track elapsed dive time.
A secure screw down crown screws tightly into the side of the steel case. This secure crown construction helps the rugged case achieve a substantial water resistance of 15 ATM.
The classic 20mm wide stainless steel bracelet features a secure fold over safety clasp lock. Every individual watch set also includes an extra eco-friendly RPET strap made from recycled plastic.
Dial
The captivating dial design clearly serves as the true visual centerpiece of this special collaborative collection. Spinnaker designs an organic wave pattern across the dial surface to mimic natural ocean movement.
A small pod of stylized dolphins swims gracefully together across this unique embossed wave pattern texture. Applied rectangular indexes join geometric hands to provide excellent legibility under all lighting conditions.
The dial features high grade Swiss Super-LumiNova paint on the hands, indexes, and dolphin silhouettes. The dolphins absorb light during the bright day and glow beautifully across the dial at night.
This clever luminescent feature simulates intelligent sea creatures swimming through deep ocean waters after sunset. An anti-reflective coated sapphire crystal protects this artful dial display from scratches and annoying glare.
Movement
Spinnaker uses the Japanese Miyota 8215 automatic movement to power this series. This self-winding movement contains 21 jewels and beats at 21,600 vph. The reliable caliber provides a solid power reserve of 42 hours when fully wound.
This caliber handles basic timekeeping duties through three central hands alongside a small date wheel display. A dedicated date window sits neatly at the 3 o’clock position on the textured dial.
SP-5177-11
The Aqua Play model carries the specific reference code SP-5177-11 within this dive watch lineup. This model features a rich dark blue dial color that captures the true essence of deep ocean water.
The dark blue dial pairs wonderfully with a matching dark blue unidirectional dive bezel insert. White Swiss Super-LumiNova fills the applied hour indexes to create sharp contrast against the dark background.
The glowing dolphin silhouettes shine brightly with green and blue tones in dark environments. A matching blue navy RPET strap complements the steel bracelet included inside the packaging box.
This colorway represents the timeless aesthetic of traditional maritime equipment and deep underwater exploration. The SP-5177-11 is limited to 500 pieces and priced at $425.
SP-5177-22
The Dolphin Cave model bears the distinct reference designation SP-5177-22 for interested watch collectors. This variation sports a green textured dial that reflects shadows inside underwater rock formations.
A matching green bezel insert surrounds the dark sapphire lens to create a unified look. The green dial texture makes the white luminescent hour markers pop with excellent daytime clarity.
The swimming dolphin figures emit a radiant green luminescence when you move into darker spaces. The SP-5177-22 is completed by a gray RPET strap. This model is limited to 425 pieces and priced at $425.
SP-5177-33
The Sunrise Splash model finishes the trilogy under the reference number SP-5177-33. This striking variant showcases a vivid orange dial color to mimic sunrise in the morning.
A bright orange bezel insert offers a stunning color, and this playful layout captures the beautiful moment when early morning sunlight hits the tropical ocean surface. The orange accents extend to the tip of the central sweeping second hand for tracking precise seconds.
A black RPET strap accompanies the stainless steel bracelet to complete this energetic summer look. This model is limited to 425 pieces and priced at $425.
