Pita Barcelona is a small family run watch making business that turns out some pretty sweet watches. The Oceana is hands down our favorite. When they built the Oceana they wanted to set a new record for water resistance. I would say the 5000m water resistance is sufficient for all diving needs. That translates to over 3 miles! This kind of water resistance is achieved by the Oceana’s unique construction. As you can see this watch doesn’t have a winding crown, eliminating the possibility for water to enter at the crown. Also allowing you to set the time even under water. The time is set rotating the watches case back with the assistance of those little gold nobs. With the case back you are also able to wind the watch manually (even though it is a mechanical watch). The seconds hand is a star and doubles as a “chromatic depth” meter. The different colors alert you to your diving depth. Check out this watch and some of their other work by clicking the link.