Specifications - Epson SOLAR Series Watch Movement Specification And Drawing

Cal.
VR42B
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
3 Hands
Small hands
Calendar
Reset switch
Power depletion warning function
(Second hand moves at 2-second intervals when voltage is 1.2V)
Running time
Setting mechanism
Chronograph
Battery indicator
4. FEATURES
Jewels
Anti-magnetism
Driving current consumption
Operation stopping voltage
Solar cell type
Maximum unbalance of hands
Moment of inertia
5. SECONDARY BATTERY
Type
Size
Nominal voltage
Capacity
6. SEPARATED PARTS (Parts code)
Hand setting stem
Secondary battery unit
Solar cell unit
Solar cell lead terminal (2pcs)
7. TEST OF ACCURACY
Equipment to be used
Duration of measurement
Microphone to be used

Specifications

Solar Quartz 13 1/2''' Chronograph Movement
φ31.20mm × 28.00mm(3-9H)
φ30.6mm
3.97mm (Including solar cell : 4.52mm)
Tuning fork
32,768 Hz
±20 seconds per month (on wrist)
－5℃ to ＋50℃
Nil (Pre-adjusted)
Hour / Minute / Second
24 hour(3H) / Second chronograph(6H) / Minute chronograph(9H)
Instant setting device for date calendar
Approx. 4 months (After fully charged)
Crown at normal position
Crown pulled out 1st click
Crown pulled out 2nd click
1/1 second up to 30 minutes with split time measurement
Push 4h button (more than 1second)
0 Jewels
Over 1600A/m (Direct current magnetic field)
Approx. 1.45μA (1.4V,chronograph non-operates)
1.2V(Chronograph function)
Amorphous silicon solar cell
Hour hand
Minute hand
Second hand
24 hour hand
Second chronograph hand
Minute chronograph hand
Second hand
Second chronograph hand
Titanium-lithium-ion secondary battery
φ9.5mm × t 2.05mm
1.5 V
5.5 mAh
0351578 or 0351177
302334R
4020529(4.5H window) / 4020544(4H window)
4281516
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.
Date : 30/Nov./'18
Rev. : 01
: Free
: Instant date change
: Time setting / Reset
: 0.6μN・m
: 0.9μN・m
: 0.09μN・m
: 0.05μN・m
: 0.05μN・m
: 0.05μN・m
: less than 0.25 μg・m²
: less than 0.05 μg・m²
P. 2