Rolex GMT-Master II  Black bezel
 here are the key features:
Model: Rolex GMT-Master II
Movement: Automatic (Rolex Caliber 3285)
Bezel: Bidirectional rotatable 24-hour graduated bezel (green and black Cerachrom insert)
Dial: Black with luminescent hour markers
Case Size: 40mm (Oystersteel)
Bracelet: Jubilee (Oystersteel)
Crystal: Sapphire crystal with Cyclops lens over the date
Water Resistance: 100 meters / 330 feet
Functions: Hours, minutes, seconds, date, and second time zone (24-hour hand)