Version-01
Cal.NE86A
Manual winding
Automatic winding with ball bearing
Stop-second device
Quick date correction
- 15 ~ + 25 seconds per day
* Measurement should be done within 10 ~ 60 minutes after fully wound up.
* All measurements are made without the calendar & chronograph in function.
More than 45 hours (Mainspring after fully wound up)
* Posture to confirmation : Dial up
* Measurements are made without the chronograph in function.
SPECIFICATION
Accuracy
Static accuracy
Measurement
position
Lift angle
Measurement time
Posture
difference
Isochronisms
(24h-0h)
2 Hands ( Hour, Minute ) , Small Second hand ( 3H )
Date Calendar
Chronograph
60 seconds counter ( Center ) , 30 minutes counter ( 9H )
28,800 vibrations per hour
Time indication
Movement
size
Cal. No.
NE86A
Item
Chronograph Start & Stop ( 2H ) , Chronograph Reset ( 4H )
1
Winding the mainspring
<< Movement >>
・
Fully wound up by turning the crown minimum 55 times.
・
Fully wound up by turning the ratchet wheel screw 8 times.
<< Complete Watch >>
A winding machine is needed to wind up the mainspring.
*Full wind up conditions (Reference information)
(1) Rotary speed : 30 rpm (2) Operating time : 60 minutes
Jewels
34 jewels
Crown
position
Clockwise
Normal position
Free
Manual winding
Counterclockwise
Button position
First click
Date setting
Movement
Outside diameter
Ф28.60 mm
Casing diameter
Ф28.00 mm
Direction of 3 positions. (1) Dial up (2) 9 o'clock up (3) 6 o'clock up
51 deg.
Duration time
Total height
7.62 mm
Basic function
Frequency
20 seconds
* Equipment to be used : Witschi WATCH EXPERT
Free
Second click
Time setting
Time setting
Difference is under 45 seconds within maximum value and minimum value.
* Measurement should be done within 10 ~ 60 minutes after fully wound up.
* Direction of 4 positions.
(1) 12 o'clock up (2) 9 o'clock up (3) 6 o'clock up (4) 3 o'clock up
- 10 ~ + 20 seconds per day
* Direction position : Dial up
* Difference of static accuracy of 24 h and 0 h
