Citizen Eco-Drive F150 User manual

INSTRUCTION MANUAL

To check the movement number
A case number—4 alphanumeric characters and 6 or
more alphanumeric characters—is engraved on the
case back. (Figure on the right)
The first 4 characters of the case number represent
the movement number of the watch. In the example
on the right, “ ” is the movement number.
Thank you for your purchase of this Citizen watch.
Before using the watch, read this instruction manual carefully to ensure
correct use.
After reading the manual, store it in a safe place for future reference.
Be sure to visit the Citizen website at http://www.citizenwatch-global.com/ .
Here you will find a variety of information such as electronic setting guides,
answers to frequently asked questions, Eco-Drive recharging information and
more.
Engraving position example
The engraving position may
differ depending on watch
model.
1

Safety precautions — IMPORTANT
This manual contains instructions that should be strictly followed at all times
not only for optimal use, but to prevent any injuries to yourself, other persons or
property. We encourage you to read the entire booklet (especially, pages 74 to 85)
and understand the meaning of the following symbols:
■ Safety advisories are categorized and depicted in this manual as follows:
DANGER
Highly likely to cause death or serious injury.
WARNING
Can cause serious injury or death.
CAUTION
Can or will cause minor or moderate injury or damage.
2

■ Important instructions are categorized and depicted in this manual as follows:
(Following symbols are examples of Pictograms.)
Warning (caution) symbol followed by prohibited matters.
Warning (caution) symbol followed by instructions that should be
followed or precautions that should be observed.
Safety precautions
3

4
• Eco-Drive
Never needs a new battery.
This watch is fueled by light.
• World time
Indicates the time around the
world by choosing one of 40
time zones.
• ±5-second average monthly
accuracy
Keeps high accuracy without
time signal reception.
• Perpetual calendar
No need for monthly and
leap-year date correction until
February 28, 2100.
Satellite Wave-GPS
Receives location and time
information sent from GPS satellites
and adjusts the time and calendar on
the watch automatically.
Light-Level Indicator
Indicates current power generation
amount in 7 levels.
It can be used as a reference for
choosing a good charging place.
Features
* “Eco-Drive” is an original technology of Citizen.

5
CONTENTS
Before using this watch .......
7
Band adjustment............... 8
Protective stickers .............. 8
How to use a specially designed
crown/button ................ 9
Component identification ...
11
Charging your watch........
12
Checking the current power
reserve and power generation
amount ..................... 18
Setting the world time......
24
Obtaining location information
from satellite signal.......... 31
Setting the time zone
manually .................... 33
Receiving time
information ..............
34
Checking the previous
reception result of the satellite
signal ....................... 42
Switching daylight saving time
and standard time.........
44

6
CONTENTS
Information on satellite signal
reception.................
46
Checking and adjusting leap
second setting ............
52
Checking and adjusting the
rollover number setting ....
55
Adjusting the time and calendar
manually.................
58
Checking and correcting the
reference position .........
62
Troubleshooting ...........
66
Eco-Drive watch handling
precautions. . . . . . . . . . . . . . .
74
Water resistance ...........
76
Precautionary items and usage
limitations ...............
78
Specifications .............
86

7
After unpacking, the following must be done before using the watch:
1Checking the current power reserve (page 12)
2Setting the world time (page 24)
3Receiving the satellite signal (page 46)
This watch has a rechargeable cell which is charged by
exposing the dial to light.
Expose the dial to direct sunlight regularly to charge the
watch.
For details of charging, see pages 12.
• Especially, satellite signal reception is power-consuming.
Be sure to keep your watch sufficiently charged.
Before using this watch

8
Before using this watch
Band adjustment
We recommend seeking the assistance of an experienced watch technician
for sizing of your watch. If adjustment is not done correctly, the bracelet may
unexpectedly become detached leading to loss of your watch or injury.
Consult your nearest authorized Citizen service center.
Protective stickers
Be sure to remove any protective stickers that may be on your watch (case back,
band, clasp, etc.). Otherwise, perspiration or moisture may enter the gaps between
the protective stickers and the parts, which may result in a skin rash and/or
corrosion of the metal parts.

9
Before using this watch
How to use a specially designed crown/button
Some models are equipped with a specially designed crown and/or push button to
prevent accidental operation.
Screw down crown/button
Unlock the crown/button prior to operate your watch.
Unlock Lock
Screw down
crown
Rotate the crown
counterclockwise until
it releases from the case.
Push the crown in to the
case. With gentle pressure
towards the case, rotate
the crown clockwise to
secure it to the case. Be
sure to tighten firmly.
Screw down
push button
Rotate the locking screw
counterclockwise, and
loosen until it stops.
Rotate the locking screw
clockwise, and tighten
firmly.

10
Before using this watch
Recessed button
Use a thing with a thin end to press and release the button.
• Metal objects may cause marring or scratching of
the button.

11
Component identification
• The illustrations in this instruction manual may differ from the actual appearance
of your watch.
• A solar cell is under the dial.
Minute
hand
RX-TME/RX-GPS:
Reception-in-progress
indication
OK/NO:
Reception
result indication
Hour hand
Place name/
time zone
Date
indication
Second
hand
Button
Button
Crown
Function hand
• Day indication
• Power reserve level
scale (5 levels)
• Daylight saving time
(
SMT ON/OFF
)

12
This watch has a rechargeable cell which is charged by
exposing the dial to light, such as direct sunlight or fluorescent
lamps (refer to page 16 for charging guidelines).
For optimal performance, be sure to:
• Put the watch in a location where the dial is exposed to bright
light such as by the window even when it is not used.
• Expose its dial to direct sunlight for 5 or 6 hours at least
every half-a-month.
• Avoid leaving it in dark places for long periods of time.
Charging your watch

13
Charging your watch
CAUTION
• This watch contains a large-capacity rechargeable cell for performing power-
consuming satellite signal reception. This large capacity cell takes more time to
charge than those found in other Eco-Drive watches.
• If the surrounding temperature falls below 0°C (32°F) or exceeds 40°C (104°F),
the “
Charge suspension temperature detection function ” will activate and
charging will not be possible.
• Do not charge the watch at a high temperature (about 60°C (140°F) or higher)
as doing so may cause movement malfunction.
• If the watch is obscured from light by long sleeves frequently, supplemental
charging may be needed to ensure continual operation.
• The watch stops charging automatically after finishing (overcharging prevention
function). The function prevents damage to performance of the watch and
rechargeable cell due to overcharging.

14
Charging your watch
When the watch reaches a low charge state
(insufficient charge warning function)
When the power reserve becomes low, the second hand
moves once every two seconds. This is the insufficient charge
warning function. Be sure to fully charge your watch as
outlined on page 16.
• When the watch is sufficiently charged, the second hand
will move normally.
• If you do not charge the watch for 5 days or longer after the insufficient charge
warning movement has begun, the watch will be depleted of all power and stop.
CAUTION
• If you do not charge the watch for 30 days after it has stopped, recharging will
not be possible (over discharge detection function).
Consult your nearest authorized Citizen service center if no hands start to move
even after charging a stopped watch for one day or more exposing to direct
sunlight.

15
Charging your watch
During the insufficient charge warning state
The time and date is indicated correctly.
Operations below are available:
• Checking power generation amount
• Setting the world time
• Adjusting the time and calendar manually
You cannot execute operations other than above such as obtainment of location
information or reception of satellite signals.

16
Charging your watch
Charging time by environment
Below are the approximate charging times when exposing to light continuously.
Please use this table as a reference only.
Environment Illuminance (lx)
Charging time (approx.)
To work for one day
To start working
normally when the
cell is discharged
To become fully
charged when the cell
is discharged
Outdoors (sunny) 100 000 3 minutes 4.5 hours 30 hours
Outdoors
(cloudy) 10 000 25 minutes 45 hours 300 hours
20 cm (8 inches)
away from a
fluorescent lamp
(30 W)
3 000 1.5 hours 160 hours 1040 hours
Interior lighting 500 7.5 hours − −
• Exposing to direct sunlight is recommended to charge your watch. A fluorescent
lamp or interior lighting does not have sufficient illumination to charge the
rechargeable cell efficiently.

17
Charging your watch
Power save function
The hour, minute, and second hands stop automatically to save power as 3 days
passed after stopping power generation.
• The watch is still running internally to keep the time and calendar correctly even
after the power save function has activated.
• The power save function does not activate when the position of the crown is
or .
• The power save status ends and the hands return to indicate the current time as
the watch is operated or the dial is exposed to light and power generation starts.
Duration without additional charging after charging the watch fully
About 2 years in normal use.
• When receiving time signals every 6 days.
• The watch will keep running internally for up to 7 years with the power save
function.

18
Charging your watch
Checking the current power reserve and power generation amount
Always care about the current power reserve and charging environment of the
watch to be sure it is charged sufficiently.
4
3
2
1
0
01
2
3
4
6
5
Indication of power reserve
in levels
Indication of power generation
amount in levels
Function hand
Hour, minute and
second hands

19
Charging your watch
1Push the crown in to position .
2Press and release the upper right button .
The power reserve and power generation amount at the
moment of pressing the button are indicated in levels.
•
Power reserve level : page 20
•
Level of power generation amount : page 22
3Press and release the upper right button to
finish the procedure.
The hands returns to current time indication.
• They returns to current time indication automatically
in about 10 seconds.