Reference 16578 is the 18K gold version of ref. 16570, the GMT-Master evolution introducing sapphire crystal and quick-set date (with cal. 3075). The relatively short production period (from 1980 to 1988 circa) combined with the gold case - a much harder seller on a sport's watch - mean that such examples are extremely scarce. Actually, the model was available with two case configurations: either with black bezel, or with the present "rootbeer" color scheme. Extremely scarce SARU (sapphire and ruby) examples were also made.

When it comes to the dial, the "standard" configuration appears to be the well-known black GMT dial. However, as the present timepiece exemplifies, other more luxurious options were available even for the non-SARU examples. The subtle diamond and ruby-set hour markers do a wonderful job of elevating this timepiece beyond its non gem-set peers but still manage to maintain a somewhat restrained overall aesthetic impact. It is no surprise that the present dial configuration has developed over time a sort of "cult" following, and today is one of the most appreciated by the collector's community.

The present example is offered in excellent condition, furthermore it has been serviced by Rolex in 2020, meaning that its perfect functioning is guaranteed by the company until 2022.