JAR watches bring an unconventional sensibility to the traditional art of horology. Joel Arthur Rosenthal approaches the watch as both a precision instrument and an exercise in design. The dial and case provide a framework for his meticulous attention to detail, while the choice of materials and decorative finishes lends each creation an individual character. Balancing mechanical function with the artistry of high jewellery, JAR watches extend the designer’s singular vision into a field governed by precision, proportion and the passage of time.