Version-01
Cal.NE86A
8.Chronograph unit and Base Unit ( Disassembling and Reassembling )
Detachment of the chronograph unit and base unit by taking off the screws (4pcs.)
Attachment of the chronograph unit with the base unit.
Chronograph unit
Base unit
Main plate screw
Main plate screw
Note
When attaching chronograph unit on base unit, set the push button A in START position, in order to ensure
that the following wheels mesh perfectly with one another.
Before attaching the chronograph unit, check that base unit operates correctly.
9.Method to distinguish between dial washers
∙
Color of Brass
∙
Handling caution
TECHNICAL GUIDE
17
Crown position
Base unit
Chronograph unit
First position
Date corrector setting
transmission wheel D
Date corrector setting
transmission wheel E
Check point
Date display with quick correction
Hand setting
Driving
Second
position
Minutes transmission
wheel
Minute wheel pinion A
Seconds transmission
wheel
Seconds counter
intermediate wheel
Parts name
Parts code
Set position
Note
Dial washer
B
( X2 )
0491 181
Minute counting wheel
Hour counting wheel
Dial washer
D
0491 183
Second wheel
∙
Color of Brass
Dial washer
C
0491 182
Minute counter
intermediate wheel and
pinion B
∙
Color of Silver
○
✕
○
20
○
19
○
21
○
58
○
58
○
51
○
55
○
56
○
51
○
55
○
56
