His work is characterized by a modern, minimalist aesthetic, often integrating innovative materials and mechanisms to create functional yet visually striking pieces.

Reina has a background in industrial design and has dedicated much of his career to exploring the intersection of technology, craftsmanship, and timekeeping. He is particularly renowned for his collaborations with Nomon, a Spanish company specializing in contemporary clocks. As a lead designer for Nomon, Reina has been instrumental in redefining wall and table clocks, turning them into artistic, sculptural pieces rather than just functional timepieces.

His designs often feature clean lines, geometric forms, and premium materials like wood, metal, and marble, blending traditional craftsmanship with modern production techniques. Many of his creations challenge conventional clock design by playing with asymmetry, floating elements, and minimalist aesthetics.

Through his innovative approach, José María Reina has transformed timekeeping into an art form, merging function with sculptural elegance. His designs are featured in high-end interiors, design exhibitions, and luxury spaces worldwide, reinforcing his reputation as a leading figure in contemporary Spanish design.