Often called Mk1, Mk2, and Mk3 Hulk Dials

Mark 1 Dials
Early Mark 1 Hulk dials, found on watches from roughly 2010 to 2015, can be identified by how the depth rating is laid out. In “1000ft = 300m,” the equals sign sits evenly between the two measurements rather than favouring either side. The letter “f” in “ft” is also short and compact, with a noticeably stubby vertical stroke. Together, these two details define the earliest Hulk dials.
Mark 2 Dials
Mark 2 dials, which appear briefly around 2015 to 2016, look very similar at first glance but introduce a small printing change. The “f” in “ft” remains short, but the equals sign shifts slightly to the right, breaking the perfectly centred alignment seen on earlier dials. This makes Mark 2 a transitional version that requires closer inspection to distinguish.
Mark 3 Dials
With Mark 3 dials, produced from around 2016 until the Hulk was discontinued in 2020, the changes become more obvious. The equals sign moves even further to the right, and the “f” in “ft” is redesigned with a taller, elongated shape. This longer “f” is the quickest and most reliable way to identify a Mark 3 dial, even without side-by-side comparison.