Case material: Steel; Charge: Automatic; Conditions: New Presentation condition : With dealer guarantee ; Model: Aquatimer Price on request Gmtbroker Reference: iw379503 IWC iw379503 Complete Details: SPECIAL EDITION WITH VERY LIMITED PRODUCTION! Dedicated to Charles Darwin & his expedition to the Galapagos islands. The choice of bronze for the case pays homage the "HMS Beagle" which was the ship that carried Mr. Darwin on his expedition. Bronze is a non-corrosive metal which was used for the portholes, fittings & nautical instruments. Over the course of time the bronze will assume a slight patina and will turn darker in color giving the watch unmistakable character. The bronze color theme continues on the watch dial with a light bronze colored luminescent material. This watch features: Polished bronze case. IWC SAFEDIVE SYSTEM Uni-directional rotating bezel: Rotating the external bezel ring counter-clockwise will engage the inner bezel.  However rotating the external bezel ring clockwise will not affect the inner bezel, thus preventing the risk of extending the period of time the diver remains under water. This is accomplished via the "sliding clutch system" which allows the external bezel to interact with the internal bezel ring - all the while maintaining the water resistance integrity of the watch. The sliding clutch system is fitted with a polished protective cover located on the case edge at the 9 o'clock position. Black bezel ring