Here's a 1970s diving legend, the IWC Aquatimer Super Compressor.
Check out the jet black dial with silvered markers.
The solid stainless steel case is a hefty 38mm wide, excluding the two crowns ... by 44mm from lug to sculpted lug. The upper crown, which controls the internal rotating bezel, is signed. The lower crown, which winds and sets the watch, is not.
The automatic movement keeps excellent time.
These 1970s Aquatimers are diving legends, famed for their spare, classic style and their durability.