I've a Hamilton with a Sapphire glass cover and it's unmarked despite being my daily wear watch for more than a few years.
I've other watches with 'tough' glass (Seiko Hardlex on one) and they all have scratches and marks.
I've a Hamilton with a Sapphire glass cover and it's unmarked despite being my daily wear watch for more than a few years.
I've other watches with 'tough' glass (Seiko Hardlex on one) and they all have scratches and marks.