The IWC Big Pilot’s watch is designed based on a navigation watch that was introduced in 1940, the IWC ref. 431/Type 52 T.S.C., which utilized a modified pocket watch movement and was produced for military pilots of the era. With its signature, large “onion” type crown, 46 mm case size, and a 7-day power reserve indicator on the dial, the Big Pilot is easily identifiable on the wrist.

The Panerai Radiomir PAM 380 has a 45mm case with wire lugs, which are reminiscent of the original Radiomir design worn by the Royal Italian Navy divers of the 1930s. With the OP logo at 6 o’clock on the Sausage dial, large Arabic-style numerals, and a handsome crown, the PAM 380 has all the stylings of a classic Panerai timepiece.

The Rolex Sea-Dweller Ref 126600 was introduced in 2017, as a celebration of the 50th Anniversary of the first Sea-Dweller. The SD43, as it is known, debuted the new 43mm case size and 22mm lug width. The Ref 126600 also introduced the single Sea-Dweller text line in red on the dial, as well as a cyclops magnifier over the date window.