[SPECIFICATION]
SII Products
1
Time setting
Second click
Time setting
Crown
position
Date setting
NH05B:Free NH06B:Day setting
Counterclockwise
Clockwise
First click
3 Hands ( Hour , Minute , Second )
Date Calendar
3 Hands ( Hour , Minute , Second )
Day & Date Calendar
5.92 mm
(with Dial support)
5.92 mm
(with Dial support)
Ф
17.5mm
Ф
19.8mm (with Dial support)
Ф
17.5mm
Ф
19.8mm (with Dial support)
Ф
17.2mm
Ф
17.2mm
Duration time
More than 40 hours … Mainspring after fully wound up.
* Posture to confirmation : Dial up
20 seconds
* Equipment to be used : Witschi WATCH EXPERT
Posture
difference
Difference is under 90 seconds within max value and min 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
Isochronisms
(24h-0h)
Measurement
time
-35~+35 seconds per day.
* Direction of position. : Dial up
* Difference of static accuracy of 24h and 0h
Winding the mainspring
Normal position
Free
Manual winding
<< Movements >>
・
Fully wound up by turning the crown minimum 55 times.
<< Complete Watch >>
A winding machine is needed to wind up the mainspring.
Full wind up conditions
・
Rotary speed : 30 rpm
・
Operating time: 60 minutes
Jewels
21 jewels
Basic function
Frequency
21,600 vibrations per hour
Accuracy
Static accuracy
-35~+55 seconds per day
* Measurement should be done within 10~60 minutes after fully wound up.
* All measurements are made without the calendar in function.
Measurement
position
Direction of 3
positions. (1) Dial up (2) 9 o'clock up (3) 6 o'clock up
Lift angle
52 deg.
Manual winding
Automatic winding with ball bearing
Quick date correction
Manual winding
Automatic winding with ball bearing
Quick day-date correction
PARTS CATALOGUE / TECHNICAL GUIDE
Cal.NH0*B
Version-01
Cal. No.
NH05B
NH06B
Time indication
Casing diameter
Total height
Item
Movement
Movement
size
Outside diameter
