https://www.bobswatches.com/rolex-blog/watch-review/vintage-rolex-gmt-master-16753-root-beer.html

The Rolex GMT-Master ref. 16753, with its warmer tones and unique design set, is one of the most distinctive editions of the famous pilot’s watch. While most Rolex GMT-Master watches feature bezels in black, blue, and red tones, ref. 16753 opts for shades of brown and cream. Of course, there’s also the option for traditional hour markers filled with lume on other GMT-Master watches, but our vintage of the week features faceted nipple hour markers in yellow gold instead – another departure from the typical GMT-Master design code....