MOVEMENT SPECIFICATION - 1
CAL.VD55C 12 3 / 4 Ligne Quartz Movement
Three Hands with 3 Eyes ( Minute, Second, 1 / 10 Second Chronograph )
Outside diameter ψ29.50mm
(12H~6H)
x 26.00mm
(3H~9H)
Casing diameter ψ28.80mm
(12H~6H)
Total height 3.97 mm
Dimensions of small hands away from center 7.50 mm
Type of quartz oscillator Tuning fork
Frequency of quartz oscillator 32,768 H Z
Accuracy Monthly rate: Less than 20 seconds per month at
normal temperature range
Regulation device Nil
Regulation hands unbalance Second : Less than 0.09 µN·m ( 9mg·mm )
Minute : Less than 0.60 µN·m ( 60mg·mm )
Hour : Less than 0.50 µN·m ( 50mg·mm )
Chronograph hands : Less than 0.05 µN·m ( 5mg.mm )
The moment of inertia
1/10 chronograph hand
: Less than 0.40 µg·m² ( 400mg·mm² )
(Disc hand)
Additional function Stopwatch : up to 1 minute in 1/10 second ( 2 seconds per round )
up to 60 minutes in 1 second split time
Type Silver oxide battery
Nominal voltage 1.55 V
Size ψ9.5 x t 2.0 ( mm )
Battery life Approx. 3 years
Recommended battery SR920SW ( SEIZAIKEN )
The dial is fixed by two dial leg holes of the main plate
0 jewel
≧1600 A / m
( direct current magnetic field )
On equal level with general quartz movement
8. OPERATING TEMPERATURE RANGE
From - 5 ℃to + 50 ℃
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.
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