The question
Is it possible to scratch the glass on the clock? if so what? Is it difficult to do it?
Dmitry, 17.03.2006 12:10:59

Answered
If we are talking about sapphire glass, it is difficult to scratch it, but it is still possible. You should only arm yourself with the right tool: we recommend scratching sapphire glass with diamonds.

A reliable way to apply a lot of scratches to sapphire glass is to put the clock in a bag of diamond jewelry and shake it well, better for a few days. You can also use jewelry from other materials with sufficient hardness indicators - the same sapphire.

Another good way is to take other sapphire glass watches and rub their glasses around each other. So you can scratch for two hours at the same time!