The Rolex Yacht-Master II reference 116689 is a discontinued luxury skipper's watch renowned for being one of the largest and most complex timepieces ever created by Rolex. It features a 44mm 18k white gold case paired with a solid 950 platinum Ring Command bezel. It is highly distinct from other sporty Rolex watches due to its specialized mechanical regatta countdown timer designed for professional yacht racing.

• Case Diameter: 44 mm

• Thickness: 13.9 mm to 14 mm (surprisingly low-profile for its size)

• Material: 18k white gold case and Oyster bracelet; 950 platinum bezel

• Movement: Automatic Caliber 4160 or 4161 (developed with over 35,000 hours of research, featuring a 72-hour power reserve)

• Complication: Programmable regatta flyback chronograph countdown with mechanical memory

• Water Resistance: 100 meters (330 feet)

• Dial: Matte white with a blue-and-red countdown display and gold hour markers (updated to "Mercedes" hands in later production variations)