When creating the perfect diving accessory, watchmakers turn to the toughest metals and materials to create timepieces to rely on.
No matter the depth, Tag Heuer, Breitling and Bremont among others call upon metal, stainless steel and even titanium to blend practicality with immaculate satin finishes.
They may be specifically made for deep sea diving, but it doesn't mean that they can't be worn on your wrist while you're sitting at your desk.
Taken from Issue no. 3 of The Big Black Book: our biannual style manual on newstands now.