Watches + Dictionary = Watchionary
Rolex Olex, The Oyster Perpetual GMT- MASTER II, www.rolex.com
GMT Bezel/ Dual-time Bezel
Multiple time zones may be read using a GMT or a dual-time bezel. The bezel has a 24-hour scale and a zero marker, which is often shaped like a triangle. A 24-hour hand is usually included in a GMT watch.