Epson As01A solar series User manual

Watch Movement Specification and Drawing
SOLAR SERIES
Cal. AS01A
Movement Size
Casing Diameter
Height
Running Time
6 3/4 × 8’’’
15.3 × 17.8 mm
3.45 mm
Approx. 4 months

Date: 30/Jul./'19
Cal. AS01A
Items Rev. Page
Features 01 1
Specifications 01 2
Appearance 01 3
Casing 01 4
Hand fitting 03 5
Hand setting stem 02 6
Dial-01 02 7-01
Dial-02 02 7-02
Dial-03 02 7-03
Casing ring 02 8
Solar cell unit-01 01 9-01
Solar cell unit-02 01 9-02
Solar cell unit-03 01 9-03
Attention-01 01 10-01
Attention-02 01 10-02
Attention-03 01 10-03

Date :
1.Solar-powered watch
2. Eliminating the need for battery replacement
3. You can use the dial which light transmittance is more than 30%
It is possible to assemble the dial which transmits light on the solar cell.
It enabled to cover the solar cell color, and you can design variety colors of dials.
4. Running time
Expected running time from full charge to stoppage will be around 4 months.
5. Power depletion warning function
The two-second intervals movement of the second hand is a signal of energy depletion.
The watch continuous running time after two-second intervals movement is approximately 1 day.
6. Structure of the separated parts
Unlike conventional quartz watches, this watch does not use a silver oxide battery, thus eliminating the
need for battery replacement.
This watch is a solar-powered watch containing a solar cell underneath the dial to convert any form of
light into '' electrical energy'' and store the power in a secondary battery.
Cal. AS01A Features 24/Apr./'15
Rev. : 01
Movement
Hand setting stem
P. 1

Date :
1. MOVEMENT DIMENSIONS
Outside diameter 15.30mm(3-9H) ×18.20mm(12-6H)
Casing diameter 15.30mm(3-9H) ×17.80mm(12-6H)
Total height 3.05mm (Including solar cell : 3.45mm)
2. TIME STANDARD
Type of quartz oscillator Tuning fork
Frequency of quartz oscillator 32,768 Hz
Accuracy ±20 seconds per month (on wrist)
Operating temperature range −5℃to ＋50℃
Regulation device Nil (Pre-adjusted)
3. INDICATOR / FUNCTIONS
3 Hands Hour / Minute / Second
Reset switch
Power depletion warning function
(Second hand moves at 2-second intervals when voltage is 1.15V)
Running time Approx. 4 months (After fully charged)
Setting mechanism Crown at normal position : Free
Crown pulled out 1st click : Time setting / Reset
4. FEATURES
Jewels 0 Jewels
Anti-magnetism Over 1600A/m (Direct current magnetic field)
Driving current consumption Approx. 0.93μA (1.4V)
Operation stopping voltage 1.0 V
Solar cell type Amorphous silicon solar cell
Maximum unbalance of hands Second hand : 0.06μN・m
Minute hand : 0.6μN・m
Hour hand : 0.5μN・m
Moment of inertia Second hand : less than 0.11 μg・m²
5. SECONDARY BATTERY (Installed)
Type Titanium-lithium-ion secondary battery
Size φ6.8mm ×t 2.15mm
Nominal voltage 1.5 V
Capacity 2.5 mAh
6. SEPARATED PARTS (Parts code)
Hand setting stem 0354788
7. TEST OF ACCURACY
Equipment to be used SEIKO quartz tester QT-99,
Greiner quartz timer-C , Witschi Q-tester 4000
Duration of measurement 10 seconds
Microphone to be used Electromagnetic detection type
All specifications are subject to change without notice.
Cal.
Solar Quartz 6 3/4 × 8''' Movement / Three Hands (H/M/S)
AS01A Rev. : 01
24/Apr./'15
Specifications
P. 2

Date :
1. How to remove the setting stem
The ''setting lever'' can not be push if the setting stem is not at normal position.
2. Attention for solar cell unit
Pay attention not to touch and scratch the surface of the solar cell.
3. Dial transparency rate
Keep the transparency rate of the dial more than 30%.
(Effective aperture is φ19mm)
Each elements of solar cell must be kept the transparency rate.
4. The guideline of charging time is as in below
(Dial transparency rate = 30%)
Illumination
(Lx) Source of light Environment
A
(Approx.
Hours)
C
(Approx.
Minutes)
700 Inside the office −100
3,000 30W 20cm 60 25
10,000 Cloudy 20 8
100,000 Fine weather 5 2
Condition A : Time required for full charge
Condition B : Time required for steady operation
Condition C : Time to charge 1 day of power
5. Caution
When removing the setting stem, put the setting stem at normal position and push the ''setting lever''
by tweezers. (Refer to the Fig.[0].)
Cal. AS01A Attention-01 24/Apr./'15
Rev. : 01
B
(Approx.
Hours)
15 minutes
1.5
4
35
A fluorescent lamp
Sun light
When charging the watch, do not place it too close to fluorescent lamp or other light sources as the
watch temperature will become extremely high, causing damage to the parts inside the watch.
Fig.[0]
P. 10-01

Date :
6. Attention for the secondary battery unit
Please set the exclusive secondary battery unit.
(The secondary battery is Titanium-lithium-ion battery without any environmentally harmful substances.)
If the silver oxide battery is accidentally set and charged, there is a possibility of battery explosion.
Please pay attention not to bend the solar cell lead terminal.
Please refrain from touching the diode element on the back side of the secondary battery.
(Refer to the Fig.[4] in below.)
To prevent from the battery explosion, it is adopted safety structure not to charge the silver oxide
battery even if it is accidentally set.
When the secondary battery is assembled, please match the phase in accordance with illustration and
push the battery vertical direction. (Refer to the Fig.[1], [2] in below.)
When the secondary battery is disassembled, please broaden the spring of circuit block cover toward
the (⇒) direction and remove the battery in accordance with illustration. (Refer to the Fig.[3] in below.)
Cal. AS01A Attention-02 24/Apr./'15
Rev. : 01
Setting position
Diode
Fig.[1] Fig.[2]
Fig.[3] Fig.[4]
Solar cell lead terminal
P. 10-02

Date :
7.Attention for hands disassemble
When the hand is disassembled, please be sure to hold the dial.
If the hand is disassembled without holding the dial, it may have a possibility to break the movement.
8. How to set the dial
The dial is held by the four guide poles on the solar cell unit.
Cal. AS01A Attention-03 24/Apr./'15
Rev. : 01
Hand remover
P. 10-03