Today, the Breitling Superocean Heritage collection is best known for its vintage-inspired designs that recall some of the earliest years of Breitling diving. One of the best embodiments of this modernly-focused, vintage-inspired collection is the 2017-introduced SuperOcean Heritage B20 Automatic. Yet, less commonly known, is this popular diver chronograph was actually a sequel to a design first launched just a decade earlier in the original SuperOcean Heritage. This model, the A17321, is a sized-down version of that 46mm design, the 2011-launched watch firmly geared towards versatile daily wear.

Compared to its modern follow-up and mid-2000s predecessor, this SuperOcean Heritage time-and-date is instantly familiar, with it similarly defined in its attractive combination of historical flares and modern capabilities. Sized in a ready-for-anything 42mm by 13mm stainless steel case, the watch is a capable companion on land or sea with a 200m dive rating, unidirectional diving bezel, and a large crown plenty sturdy in its vintage-influenced, guard-less style.