What is a sapphire crystal?
A sapphire crystal is a watch crystal that is made of a piece of artificial sapphire. Having a hardness of 9 moths, it is extremely hard and scratch resistant and can only be scratched by a diamond. Why should a watch be water resistant? A watch movement is a delicate micro-machine which must be protected against water, vapours, sweat, dust, dirt and humidity. The case of a waterproof watch is designed with a seal around the crystal, crown and back to ensure the integrity of the watch. All TRITON mechanical watches have water resistant cases. Water resistant watches are designed to protect the watch from exposure to moisture, such as being caught in the rain or washing your hands. All TRITON watches are water resistant to 10 ATM (100 metres/330 feet).