The Rolex GMT-Master II reference 16713, also known as "Occhio di Tigre" or "Tiger Eye," is an iconic model produced from the 1980s onwards. Characterized by its two-tone steel and yellow gold case, it often features a brown or "tropical" dial and a bezel whose colors may have faded over time, giving it a "ghost" appearance sought after by collectors. This watch was designed for travelers, allowing the display of three time zones simultaneously.