Zenith and Topper Jewelers join forces once again, this time unveiling a collaboration that feels straight out of the deep: the DEFY Extreme Diver “Bioluminescence” Topper Limited Edition. Limited to just 50 pieces, this exclusive release reimagines Zenith’s modern diver through the surreal glow of deep-sea bioluminescence—turning the DEFY Extreme Diver into a timepiece that looks alive in the dark.
Crafted from lightweight titanium, the Zenith 42.5mm diver is built for true exploration, boasting 600m of water resistance, a helium escape valve, and a blue ceramic unidirectional bezel filled with Super-LumiNova. The wavy blue dial amplifies the effect, glowing with a radiant intensity that mimics moonlit ocean currents. It’s both visually poetic and technically uncompromising.
Inside, Zenith equips the watch with the El Primero 3620, a high-frequency, no-date three-hand movement designed for purity and precision. A sapphire exhibition caseback reveals the movement’s striking bright blue rotor—a subtle nod to the luminescent theme.
Each example comes as a complete system: an integrated titanium bracelet, a white rubber strap, and a silver recycled-nylon strap made from fishing nets. All swaps are effortless with Zenith’s interchangeable strap system.
At $12,300, this Topper-exclusive edition isn’t just a dive watch—it’s a micro-run piece of mechanical art that glows with purpose, capability, and undeniable presence. Deliveries have already begun, and given the limited production, these underwater-inspired marvels won’t stay submerged for long.
For more horology news, check out the LANGE 1 DAYMATIC Honeygold.
