Designer Watches are watches that have the insignia or name of a well known designer. Designer Watches will often be very fashion-oriented and trendy.
About Sapphire:
Sapphire is a precious stone of transparent deep blue to light purple color which is used extensively in jewelry. Sapphire is considered to be one of the most valuable gemstones, it is extremely hard, and is often used to adorn the crown of some high-end watches.