U-Boat Watch Darkmoon Unico 9600/A. UNIQUE by Name, UNIQUE by DNA! The Darkmoon UNICO watch in a numbered edition skillfully blends modernity with the stylistic elements of the past. This highly individual creation is a testament to craftsmanship and handmade artistry. Each UNICO has its own identity, thanks to a carefully selected treatment with oxidizing acids that make each piece distinct from the others.