Citizen J290 - Page 21

21
Measuring altitude
Continued on the next page
25 ft hand indication
Indication range: ‒975 ft to 975 ft
The 1 000 ft hand points minus indication when measured altitude is lower than 0
ft. In this case, use figures in parentheses to read the 25 ft hand.
On the example in the right, the last 3 digits of measured altitude are indicated as
“275 ft” or “‒750 ft”.
•When your watch has the scale, setting
the
mark on the scale to the position
that the 25 ft hand points makes it easier
to determine altitude difference at the next
altitude measurement.
+
-
x 10000 ft.
ft.
0
2000
-1000
8000
4000
6000
0
1
2
3
W
E
ft.
(-100)
(-200)
(-300)
(-400)
(-500)
(-600)
(-700)
(-800)
(-900)
0
500
900
400
800
300
700
200
600
100
1
0
0
(
-
9
0
0
)
(
+
5
0
0
)
S
(
-
5
0
0
)
f
t
.
W
E
6
0
0
(
-
4
0
0
)
7
0
0
(
-
3
0
0
)
8
0
0
(
-
2
0
0
)
9
0
0
(
-
1
0
0
)
2
0
0
(
-
8
0
0
)
3
0
0
(
-
7
0
0
)
4
0
0
(
-
6
0
0
)