This 1521 variant features a striking wave pattern dial. This is what gives the model its name - Onda, which means "Wave" in Italian. It's framed by a durable steel bezel.
The Squale 1521 series is the definition of a classic diving watch and a model that has been around for almost 40 years. Regarded as one of the most important diving watches of the 1970's, the design of this watch was made by Charles von Büren (the founder of Squale). The main priority was to create an elegant yet robust watch that could live up to the high expectations of professional divers.