Seiko 3B51 Instructions Manual page 31

B B Type
・How to wear or take off the watch
Press the button on both sides of the fl ap ; pull
1
the buckle up.
The band will automatically come out of the loop.
6 Buckle
Push button
Fixed loop
Moveable Flap
loop
118
C C Type
Press the button on the buckle,
1
and lift to open the clasp.
Push button
6
120
Place the tip of the band into the moveable
2
loop and fixed loop, and fasten the clasp
by pressing the frame of the buckle.
Pull the pins out of the adjustment
2
holes on the band. Slide the band
to the appropriate length. Push the
pins into the new holes on the band.
Fasten the buckle.
Adjustment hole
Pins
・How to adjust the length of the leather band
With pressing buttons on both sides of the
1
fl ap, pull the leather band out of the moveable
loop and fi xed loop. Then open the clasp.
Buckle
Push button
Fixed loop
Moveable
Flap
loop
Pull the pin out of a adjustment hole of the band.
3
Slide the band to adjust its length and find an
appropriate hole. Place the pin into the hole.
Pin
Adjustment hole
Lumibrite
If your watch has Lumibrite
Lumibrite is a luminous paint that is completely harmless to human beings and natural environment, containing no noxious
materials such as radioactive substance.
Lumibrite is a newly-developed luminous paint that absorbs the light energy of the sunlight and lighting apparatus in a short
time and stores it to emit light in the dark.
For example, if exposed to a light of more than 500 lux for approximately 10 minutes, Lumibrite can emit light for 3 to 5 hours.
Please note, however, that, as Lumibrite emits the light it stores, the luminance level of the light decreases gradually over time.
The duration of the emitted light may also diff er slightly depending on such factors as the brightness of the place where the
watch is exposed to light and the distance from the light source to the watch.
Condition
Fine weather
Sunlight
Cloudy weather
Fine weather
Indoor (Window-
side during Cloudy weather
daytime)
Rainy weather
Distance to the
Lighting apparatus
watch: 1 m
(40-watt daylight
Distance to the watch: 3 m
fl uorescent light)
Distance to the watch: 4 m
Press the push buttons again to
2
unfasten the fl ap.
Fasten the fl ap.
4
Illumination
100,000 lux
10,000 lux
more than 3,000 lux
1,000 to 3,000 lux
less than 1,000 lux
1,000 lux
500 lux (average room luminance)
250 lux
121
6
119
6