A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Index
Sapphire Crystal (Watch):
A watch crystal made from synthetic corundum. It is the most durable watch crystal, as only another corundum or diamond can scratch its surface.
See also:
Bezel
,
Face
,
Watch Anatomy
.
