Sapphire Or Hardened Mineral Watch Crystal With Diamondfx ® Coating - WatchStar APOLLO AUTOMATON Instruction Booklet

sapphIre or hardened mIneral WatCh CrYstal WIth
dIamondFx CoatIng
®
SAPPHIRE: Some of our timepieces are fitted with sapphire crystals. Our sapphire is cut from
a polished portion of solid sapphire� Sapphire is measured in hardness at nine (9) on the Mohs
scale� It is so hard that only a diamond which measures ten (10) on the Mohs scale can scratch it�
MINERAL CRYSTAL: Some of our timepieces utilize high quality hardened mineral crystals and
most are coated on the surface with our sapphire/diamond coating called, Diamondfx®, and are
AR (anti-reflective) coated on the underside. It is made of a material that has an index of refraction
that is somewhere between air and glass, minimizing glare�
COATINGS: Usually the undersurface of the sapphire and mineral crystals are coated with
proprietary aerospace technology that helps block the sun's UVA, UVB, and UVC rays; reducing
watch dial degradation�
Please do not open caseback or have it repaired by
any unauthorized WatchStar
warranty.
47
dealer as it will void the
®
American Star
®
Gen. 1 Automatic
48