Time Module VD54B - Movement Specification - 1; MOVEMENT DIMENSIONS; TIME STANDARD; BATTERY

MOVEMENT SPECIFICATION - 1
CAL.VD54B 12 3 / 4 Ligne Quartz Movement
Three Hands with 3 Eyes ( Minute, 1 / 1 Second Chronograph & 24H Indicator )
1. MOVEMENT DIMENSIONS
·
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
2. TIME STANDARD
·
Type of quartz oscillator Tuning fork
·
Frequency of quartz oscillator 32,768 Hz
·
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 )
24 hour indicator : Less than 0.07 µN·m ( 7mg.mm )
·
The moment of inertia 24 hour indicator : Less than 0.40 µg·m² ( 400mg·mm² )
(Disc hand)
·
Additional function Stopwatch : up to 60 minutes in 1 second split time
24 hour indicator ( synchronized regular hour-hand )
3. BATTERY
·
Type Silver oxide battery
·
Size
ψ9.5 x t 2.0 ( mm )
·
Battery life Approx. 2 years
·
Recommended battery SR920SW ( SEIZAIKEN )
4. STEPPING MOTOR
·
Number of units 2 pieces
·
Type Two pole stepping motor
·
Step 180° every second
5. JEWEL
0 jewel
6. ANTIMAGNETISM
≧1600 A / m
( direct current magnetic field )
7. SHOCK RESISTANCE
On equal level with general quartz movement
8. OPERATING TEMPERATURE RANGE
From - 5 ℃ to + 50 ℃
9. 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
10. ATTACHED PARTS
* All specifications are subject to change without notice.
SII Products
Version: 6
3013 - 14G0
0110 - 3570
Parts Name
Hand setting stem
Sticker
Silver oxide battery
Parts Code
0351 - 1780 (Normal)