[SPECIFICATION]
φ23.70 mm
22.60 mm
：
between 12 o'clock and 6 o'clock sides
22.60 mm
：
between
3 o'clock and 9 o'clock sides
φ23.30 mm
22.10 mm
：
between 12 o'clock and 6 o'clock sides
21.40 mm
：
between
3 o'clock and 9 o'clock sides
3.45 mm
Electronic circuit reset switch
Second setting device
SR920SW (Silver oxide battery)
Battery life is approximately 2 years
Use 10-second gate
* Set the winding stem with crown at the normal position
* All specifications are subject to change without notice.
Time indication
3Hands
(hour,minute,second)
PARTS CATALOGUE / TECHNICAL GUIDE
Cal.VH31
Version-01
Cal. No.
VH31A
Item
Movement
Movement
size
Outside diameter
Casing diameter
Total height
SII Products
Driving
System
Step motor
Additional mechanism
Antimagnetic
≧
1600 A/m
Accuracy
Less than ±15seconds : Monthly rate at normal temperature range
Battery
Measuring gate
by quartz tester
Jewels
2 Jewels
1
