Rolex Explorer II "Freccione" 1655 MKII

Few vintage Rolex references have achieved the legendary status of the Explorer II Ref. 1655. Introduced in 1971 and produced until the mid-1980s, it was conceived as a true professional instrument for cave explorers, geologists and adventurers operating in environments where distinguishing day from night could become impossible. Unlike the GMT-Master, the fixed 24-hour bezel and independently geared orange 24-hour hand were never intended for tracking a second time zone, but rather for providing an immediate day/night indication.

Today, the reference has become one of the most researched and collected vintage Rolex sports models, with collectors carefully studying every production variation. From the earliest Mark I examples to the final Mark V dials, subtle differences in typography, coronet shape, luminous plots, bezel engravings and hands define desirability and originality.

This example belongs to the highly sought-after early production period from 1972, featuring an original Mark II dial paired with the correct Mark II bezel, one of the most desirable combinations among early "Freccione" collectors. The dial retains all the characteristics expected from this execution, including the distinctive typography and tritium luminous material that has aged naturally over more than five decades.

Powering the watch is Rolex's celebrated Calibre 1575 GMT, a self-winding chronometer movement beating at 19,800 vibrations per hour. Renowned for its exceptional robustness, reliability and ease of servicing, the 1575 remains one of the finest mechanical movements ever produced by Rolex. Unlike later independently adjustable GMT calibres, the 24-hour hand is mechanically linked to the main hour hand, faithfully reflecting the original purpose of the Explorer II as a professional tool watch.

Completing the watch is the correct 7836 folded-link Oyster bracelet with 380 end links, perfectly consistent with the production period.

Most importantly, this watch is offered as a Full Set, an increasingly rare configuration for an early Explorer II. Complete examples from the early 1970s have become exceptionally difficult to source, making originality, correct component configuration and completeness significantly more important than ever in today's collector market.

The Ref. 1655 remains one of the last truly under-produced professional Rolex references—an icon whose appeal continues to grow as collectors increasingly recognize its historical importance, unique aesthetics and uncompromising tool-watch character.