Genuine Mother of Pearl complete this beautiful classy looking watch. Features include patent-pending ALPHABezel to assist in remembering ATIS when you fly or anything you can use a letter for (One of our Crew Members said she is going to use it to remember the name of people she meets for the first time – clever!). Just rotate the alphabet letter to the magnifying window at 6:30. EZ Squeeze pins on the back of the band allow you to easily remove or put on any 20mm strap. No need to use any tools or take it to a jeweler to swap out your band.