1
Movement size
The illustrations refer to Cal. 5M42A.
(x 1.0)
Movement
Item
[SPECIFICATIONS]
Cal. 5M42A
Cal. 5M43A
PARTS CATALOGUE / TECHNICAL GUIDE
4.3 mmHeight
Casing diameter ø27.0 mm
Capacitor voltage: 0.5 ~ 2.3V
From 1.55V to stoppage: Approx. 168 hours
Cal. No.
5M42A
5M43A
Outside diameter ø27.6 mm
3 hands
Time indication
Step motor (Load compensated driving pulse type)
Driving system
Monthly rate at normal temperature range: less than 15 seconds
Loss/gain
NilRegulation system
Use 10-second gate.
Measuring gate by quartz tester
Automatic generating systemPower generator
Polyacene lithium condenserCapacitor
Power supply
Operating voltage range
Duration of charge
6 jewelsJewels
• Automatic generating system
• Power reserve indicator
• Overcharge prevention function
• Electronic circuit reset switch
• Train wheel setting device
• Date calendar
• Day calendar (for Cal. 5M43A only)
• Instant setting device for date calendar
• Instant setting device for day calendar (for Cal. 5M43A only)
Additional mechanism