Basic Information
Number :	126710BLNR
Brand :	Rolex
Series :	GMT-Master II
Movement Type :	Automatic machinery
Mechanism：	Japanese Mechanism、 Swiss Mechanism
Appearance
Case diameter :	40.0mm
Case Thickness :	12.5mm
Dial Color :	Black
Strap Color :	Silver
back :	Airtight
Material
Case Material :	904L stainless steel (Oystersteel)
Strap Material :	904L stainless steel (Oystersteel)
Glass material :	Sapphire Crystal Glass
Bezel Material :	Ceramics
Function
Date Display :	Yes
Dual Time Zones：	Yes

The Oyster Perpetual GMT-Master II in Oystersteel with a black dial and an Oyster bracelet.

This model features a black dial and a two-colour Cerachrom bezel insert in blue and black ceramic. In addition to conventional hour, minute and seconds hands, the GMT-Master II features an arrow-tipped hand, which circles the dial once every 24 hours, as well as a bidirectional rotatable 24-hour graduated bezel.