Reference 16660 was introduced in 1978 and remained in production for only a decade, being discontinued in 1988. Highly collectible and sought-after, the model is in the eyes of Rolex collectors a sort of transitional link between “old school” production and the modern one. In fact, the watch was originally devised bearing a matt dial with tritium lume plots applied directly on it - such as the present version - thus following in the path of its ancestor reference 1665. However, later examples of reference 16660 feature gold-rimmed indexes and gloss dial, traits which will come to define the later production of Rolex diver’s watches.

The caseback as well presents an evolution; early versions read “Rolex Patent” where as later versions were changed to “Rolex Oyster Original Gas Escape Valve” such as in the caseback of the present watch.

Offered in excellent condition of both case and dial, and complete with all its accessories, the quality of this timepiece is further boasted by the presence of the Rolex Service card indicating that an overhaul was made in 2010. The fact that the case dates back to 1983 but the watch was sold only in 1987 is a good barometer of the market for such a kind of highly professional diver’s timepieces at the time, which brings a smile to one’s lips when comparing it to its current sought-after status.