That’s 2000 as in 2000 meters which is the water resistance rating on this particular watch which has a 45mm titanium case. Its titanium case and minimalist design are reminiscent of another iconic though not well known IWC model: the Ocean 2000, created by Porsche Design (Ferdinand A. Porsche) in 1982. Inside is the IWC (in-house) caliber 80110 with the Pellaton winding system.
Though it appears at a glance that IWC has gone back to an internal bezel design, this is only half true. In fact, IWC has come up with a new innovation called the IWC SafeDive system which is actually an external/internal rotating bezel system. It brings the advantages of an internal rotating bezel – protects against external abrasion, dirt, seawater, and so on — with the ease of use of an external rotating bezel.
The system is “counterclockwise rotation” only, too (something rarely seen in internal bezels). A sliding system connects the two rings by the rotation of the external bezel being transmitted to the inside of the case and the internal bezel.You may have also noticed what appears to be two “crowns” on the watch — however as I understand it, the left side is actually a differential which allows for interplay of the internal/external rotating bezel construction.
