The display of time in numbers instead of hands on the dial. The numbers can appear in an LCD (Liquid Crystal Display), which shows a continuous reading or an LED (Light-Emitting Diode), which shows the time at the push of a button.
An analog display watch shows the time by means of hands. The analog display has a traditional dial with hour, minute, and sometimes second hands.
An analog-digital display watch shows the time by means of hands (analog display) as well as by numbers (digital display). This feature is usually found on sport watches.
The clear covering over the face and hands of the watch is called the crystal. The material used in making the crystal determines its scratch-resistance.
Acrylic crystal, made of plastic composite, is the least scratch-resistant, though shallow scratches can be polished out. Mineral crystal is made up of several mineral elements that are manufactured and treated by heat procedures to create a hardness that helps in resisting scratches. Sapphire crystal is the most durable and scratch-resistant crystal. It’s approximately three times harder than mineral crystal and 20 times harder than acrylic crystal. We recommend a watch with mineral crystal, at a minimum.