The Rolex GMT Master II Reference 16710 was produced from 1989-2007, this particular piece with serial number P232xxx produced in 2000. It was the last GMT before the ceramic inserts took over. It was typically supplied with the 3185 caliber but late models saw an upgrade to the 3186 caliber. As detailed in Part 3 of this series, the 16710 dial saw a number of evolutions as tritium was replaced with luminova and then super luminova. The watch is running properly. Previous service history of the watch is unknown. Photos are part of the description. This is watch only, no box/paper. Brand: Rolex Model: 16710 Type: Automatic Case: Stainless Steel Shape: Round Dial: Black Dial Strap: Stainless Steel Bracelet with Deployant Buckle Size: Men(Φ40mm) Length: 17.5cm ± 0.5cm The watch will be packed by bubble wrap securely and shipped by FedEx/UPS/Hong Kong Post. Notice: This watch will be sent from Hong Kong, customs might apply in your own country. "If the winning bidder decides to cancel/withdraw they will bear risk, cost of all shipping and return import duties of seller".