Specifications - Epson Solar Series Watch Movement Specification And Drawing

Cal.
VS15A
1. MOVEMENT DIMENSIONS
Outside diameter
Casing diameter
Total height
2. TIME STANDARD
Type of quartz oscillator
Frequency of quartz oscillator
Accuracy
Operating temperature range
Regulation device
3. INDICATOR / FUNCTIONS
2 Hands
Reset switch
Running time
Setting mechanism
4. FEATURES
Jewels
Anti-magnetism
Driving current consumption
Operation stopping voltage
Solar cell type
Maximum unbalance of hands
5. SECONDARY BATTERY (Installed)
Type
Size
Nominal voltage
Capacity
6. SEPARATED PARTS (Parts code)
Solar cell unit
Hand setting stem
Solar cell lead terminal (2 pcs)
Hour wheel
Dial washer
7. TEST OF ACCURACY
Equipment to be used
Duration of measurement
Microphone to be used

Specifications

Solar Quartz 5 1/2''' Movement / Tow hands(H/M)
11.8mm(3-9H) × 15.55mm(12-6H)
11.8mm(3-9H) × 15.15mm(12-6H)
2.09mm (Including solar cell : 2.49mm)
Tuning fork
32,768 Hz
±20 seconds per month (on wrist)
－5℃ to ＋50℃
Nil (Pre-adjusted)
Hour / Minute
Approx. 6 months (After fully charged)
Crown at normal position
Crown pulled out 1st click
0 Jewels
Over 1600A/m (Direct current magnetic field)
Approx. 0.16μA (1.35V)
1.0 V
Amorphous silicon solar cell
Minute hand
Hour hand
Titanium-lithium-ion secondary battery
φ5.8mm × t 1.65mm
1.5 V
0.9 mAh
4020583 (ROUND)
4020584 (SQUARE-1)
4020585 (TONNEAU)
0351819
4246644
0271946
0491735
SEIKO quartz tester QT-99,
Greiner quartz timer-C , Witschi Q-tester 4000
10 seconds
Electromagnetic detection type
All specifications are subject to change without notice.
30/Jul./'19
Date :
Rev. : 05
: Free
: Time setting / Reset
: 0.15μN・m
: 0.13μN・m
4020536 (ROUND-2)
4020532 (SQUARE-2)
P. 2