Rolex GMT-Master II 40mm Automatic Men's Watch, 
  ref 116710LN features: 

- Self-winding Automatic Movement 
  COSC Superlative Chronometer Certified 
  with 50 Hour Power Reserve, 
  Rolex Caliber 3186, 31 jewels 

- 40mm Oyster Steel Case 
  Screw Down Case Back 
  Screw Down Crown with Triplock Triple Waterproofness System 

- Sophisticated Black Dial with Index & Dot Hour Markers 
  covered by scratch resistant sapphire crystal, 
  The hours and minutes are tracked with stylized luminous hands,
  while the seconds are counted  with a thin central hand.

- Black Ceramic Bidirectional Rotating Bezel 
  with 24 Hour Engraved Numerals and Graduations 

- Date aperture at 3 o'clock (with cyclops lens over it - signature feature of the brand)

- Fitted on a sturdy Oyster Stainless Steel Bracelet with a signed deployant buckle.

- Instantaneous Date Setting Feature 
 
- The arrow-tipped eye-catching green hand with the scale on the bezel serves a GMT second time      zone function.

- 100 Meters / 330 Feet Waterproof 

  In immaculate condition & in excellent working order 
  Comes in Rolex box, certificate of authenticity & 6 months warranty on parts.