Rolex Explorer IIAnother chapter of the Explorer story was added in 1971 with the release of the Explorer II. Bigger and different in design, but just like the Explorer I it was a sturdy watch produced in steel and up for a challenge. A very specific challenge as it was intended for use by speleologists. It has an extra hour hand reading against the fixed, 24 hour scale, bezel to distinguish day from night. Might come in handy when you spend hours and hours in the darkness of caves. Even if you spend most of the time in daylight you won’t be disappointed by this awesome watch.REF. 1655The first Explorer II model was the ref 1655 AKA ‘Freccione’. It was fitted with either the 1570 or 1575 movement. The 1655's design was strongly influenced by the early 1970's and is often associated with the ever so cool Steve McQueen (It even adopted the nickname “The Steve McQueen”, however not a single picture can be found with him wearing the watch). The first Explorer II reference is a watch that shouldn’t be missing in the collection of a serious Rolex aficionado.