Date :
1. MOVEMENT DIMENSIONS
Outside diameter
φ
27.60mm(12H-6H)
×
24.00mm(3H-9H)
Casing diameter
φ
27.00mm(12H-6H)
Total height
4.4mm
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 / 1/5 second chronograph (Center)
Small hands
Small second (9H) / Minute chronograph (6H) / 24 Hour (3H)
Calendar
Instant setting device for date calendar
Reset switch
Power depletion warning function (BLD)
(Second hand moves at 2-second intervals when voltage is 1.2V)
Chronograph
Running time
Approx. 6 months (After fully charged)
4. FEATURES
Jewels
0 Jewels
Anti-magnetism
Over 1600A/m (Direct current magnetic field)
Driving current consumption
Approx. 0.65
μ
A (1.35V , Chronograph non-operates)
Operation stopping voltage
1.0V
Solar cell type
Amorphous silicon solar cell
Maximum unbalance of hands
Small second hand
: 0.03
μ
N
・
m
Minute chronograph hand
: 0.03
μ
N
・
m
24 huor hand
: 0.03
μ
N
・
m
1/5 second chronograph hand
: 0.09
μ
N
・
m
Minute hand
: 0.70
μ
N
・
m
Moment of inertia
1/5 second chronograph hand
: less than 0.12
μ
g
・
m²
5. SECONDARY BATTERY
Type
Titanium-lithium-ion secondary battery
Size
φ
9.5
×
t 2.05 mm
Capacity
5mAh
Nominal voltage
1.5V
6. SEPARATED PARTS (Parts code)
Hand setting stem
0351587
Secondary battery unit
302334T
Solar cell unit
4020552
Solar cell lead terminal (2 pcs)
4281516
Untransparent plate
4453500
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.
Solar Analog Quartz 12''' Center Second Chronograph Movement
Cal.
Rev. : 00
31/Jan./'18
VS75B
Specifications
The chronograph can measure up to 60 minutes in 1/5 second
increments.
P. 2