The Rolex GMT-Master II reference 16713 is a highly regarded classic two-tone model produced from the late 1980s until around 2006. It features a 40mm Rolesor case combining stainless steel and 18k yellow gold, paired with a bidirectional rotatable 24-hour bezel (available in black or the popular “Root Beer” brown-and-gold aluminum insert). Dial options include black, brown, champagne, and the collectible Serti versions with diamond and ruby indices. Powered by the Rolex Calibre 3185 automatic movement, it offers independent hour-hand adjustment for tracking a second time zone, along with a date display magnified by the Cyclops lens. Water-resistant to 100 metres and typically fitted with a two-tone Oyster or Jubilee bracelet, the 16713 remains a versatile and stylish choice for travelers and collectors of neo-vintage Rolex sports watches.