The Rolex GMT-Master II reference 116718LN is a landmark, now-discontinued luxury timepiece crafted entirely in 18k yellow gold and equipped with a scratch-resistant black ceramic Cerachrom bezel. Launched in 2005 to celebrate the 50th anniversary of the GMT-Master collection, this specific reference is historic because it was the very first Rolex sports watch to ever feature a ceramic bezel and introduce the beefier "Super Case" architecture.

While the solid gold case and solid black ceramic bezel remain identical across the reference, the 116718 was offered with two distinct dials: 

• The Black Dial: Featuring clean, classic typography and white gold or yellow gold borders around the luminescent plots. It offers the most traditional, ultra-luxurious pilot aesthetic.

• Case Size: 40mm diameter, 11.8mm thickness, and a 48mm lug-to-lug distance.

• Case Type: "Super Case" featuring thicker, squared-off lugs and a broader profile that gives it a massive wrist presence despite its official 40mm spec.

• Movement: Rolex Caliber 3186 automatic mechanical movement with independent local hour adjustment ("jumping" hand) and a Parachrom blue hairspring for enhanced magnetic resistance.

• Power Reserve: Approximately 48 to 50 hours.

• Bracelet: Solid 18k yellow gold Oyster bracelet with polished center links, brushed outer links, and an Oysterlock clasp featuring the 5mm tool-free EasyLink extension system.

• Water Resistance: 100 meters (330 feet), secured by a gold Triplock triple-waterproofness screw-down crown.

• Weight: Extremely substantial at approximately 216 to 218 grams, giving it an unmistakable presence on the wrist.