How does one come up with a handsome yet fully functional dive watch? Answer: put a submarine''s propeller on the dial -- which is just what Perrelet did. At least that''s what you see when you look at the upper rotor on the Perrelet Turbine Diver''s face. Originating in 1777, the brand is known for turbine timepieces and this diver is definitely a welcome addition. With variants in steel, titanium, or DLC-treated materials, it features a crystal sapphire front and case back which allows a glimpse of the automatic movement. The dial of the Perrelet Turbine Diver is either black or blue with a yellow or white 20-minute dive time and hours and minutes indicators generously coated with SuperLuminova. The watch is appropriately sized at 47.5mm and with a 40-hour power reserve and 300m water resistance. The Perrelet Turbine Diver is best for a day on a yacht or an adventure beneath the ocean.