






Aquadeep K9 Crystal Black
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Estimated Shipping Date: Early-July
The Aquadeep K9 Crystal is a celebration of transparency, light, and mechanical artistry.
Built around a fully transparent case crafted from optical-grade K9 crystal, it offers an unobstructed 360° view of the watch from every angle. Six precision-cut crystal stones capture and reflect light throughout the day, creating flashes of brilliance across the exposed mechanics beneath.
At its heart beats the NH72 black automatic movement, finished in a dark skeletonized architecture and displayed through both the open-worked dial and exhibition caseback. Every rotation, every gear, and every movement becomes part of the experience.
Silver-tone Pioneer Tech hands filled with Super-LumiNova® ensure clear legibility while preserving the watch's bold, contemporary aesthetic.
To make it uniquely yours, each K9 Crystal includes a complimentary extra rubber strap in the color of your choice.
Full crystal case. Dark mechanical core. Six points of light.
A watch designed to reveal everything.
Limited Release.
MOVEMENT
Automatic NH72 (Black)WARRANTY
1-year warranty from date of shipment.DIMENSIONS
Case diameter: 43mmLug width: 22mm
Strap
FKM strap 20mmWATER RESISTANCE
300M / 30ATMMATERIALS
K9 Crystal case, bezel & caseback · Sapphire glass ·
"UNDONE is known for their work in integrating pop culture icons, such as Hello Kitty and VTuber group hololive, into elegant high-end timepieces..."
"This is a brand that truly listens to its customer base, frequently launching new models with new features and highly desired retro designs."
A Crystal-Clear Perspective
6 Sz Crystal Stones