Citizen Eco-Drive BN4021-02E - About altitude measurement; How to read altitude indication

19
Measuring altitude
About altitude measurement
This watch continuously measures altitude during the first 5 minutes of
measurement. After that, measurement occurs every 3 minutes for up to 12 hours.
How to read altitude indication
Altitude is indicated by the 3 hands, the 1 000 m, 100 m and 2.5 m hands.
1 000 m hand indication
Indication range: 1 000 m to 10 000 m
The hand points “0” when measured altitude
is lower than 1 000 m.
On the example in the left, the measured
altitude is indicated as 3 000 m level.
+
-
m
0
200
800
400
600
0
1
2
3
4
5
6
7
8
9
x 1000 m
+
-
m
0
200
800
400
600
0
1
2
3
4
5
6
7
8
9
x 1000 m
+
-
m
0
200
800
400
600
0
1
2
3
4
5
6
7
8
9
x 1000 m
1010
10
W
E
m
(-10)
(-20)
(-30)
(-40)
(-50)
(-60)
(-70)
(-80)
(-90)
0
50
90
40
80
30
70
20
60
10
1
0
(
-
9
0
)
(
+
5
0
)
S
(
-
5
0
)
m
W
E
6
0
(
-
4
0
)
7
0
(
-
3
0
)
8
0
(
-
2
0
)
9
0
(
-
1
0
)
2
0
(
-
8
0
)
3
0
(
-
7
0
)
4
0
(
-
6
0
)
W
E
m
(-10)
(-20)
(-30)
(-40)
(-50)
(-60)
(-70)
(-80)
(-90)
0
50
90
40
80
30
70
20
60
10
1
0
(
-
9
0
)
(
+
5
0
)
S
(
-
5
0
)
m
W
E
6
0
(
-
4
0
)
7
0
(
-
3
0
)
8
0
(
-
2
0
)
9
0
(
-
1
0
)
2
0
(
-
8
0
)
3
0
(
-
7
0
)
4
0
(
-
6
0
)
W
E
m
(-10)
(-20)
(-30)
(-40)
(-50)
(-60)
(-70)
(-80)
(-90)
0
50
90
40
80
30
70
20
60
10
1
0
(
-
9
0
)
(
+
5
0
)
S
(
-
5
0
)
m
W
E
6
0
(
-
4
0
)
7
0
(
-
3
0
)
8
0
(
-
2
0
)
9
0
(
-
1
0
)
2
0
(
-
8
0
)
3
0
(
-
7
0
)
4
0
(
-
6
0
)