勞力士，罕有，不銹鋼自動上弦鏈帶腕錶，配計時功能及跌字錶盤，“Daytona”，型號16520，約1988年製

This remarkable timepiece is an example from the very first production of automatic Daytona. Distinguished by the R serial number, these rare pieces can be arguably considered as game-changers in the market of sports watch, as had been 20 years before the first manually wound Daytonas. With an oversized 39 mm. case, destined to become 40 mm. one decade later, the new Daytonas were precursors of the "large watch" fashion that will hit the market in a few years time. Furthermore, the present watch is adorned by the attractive black dial, with the correct "floating" Cosmograph designation - also known as staccato dial: that is, the gap between the fourth and fifth line is wider than the gaps between the other lines, as if the word Cosmograph was floating away from the rest.