10
TECHNICAL GUIDE
Cal. YT57B
Lubricating:
: Moebius A
: SEIKO Watch Oil S-6
33
Train wheel setting lever
41
Yoke
42
Setting lever
•
Setting position and lubricating
Refer to the illustration at right.
Train wheel setting lever
Setting lever
Yoke
III.
VALUE CHECKING AND ADJUSTMENT
●
Coil block resistance
1.7 K
Ω
~ 2.1 K
Ω
●
Generating coil block resistance
280
Ω
~ 380
Ω
●
Current consumption
For the whole movement :
Less than 0.80
µ
A (with 1.55 V supplied from a battery)
For the circuit block alone :
Less than 0.20
µ
A (with 1.55 V supplied from a battery)
1.
Make the movement ready for measurement.
How to measure the current consumption for the whole movement
1)
Follow the disassembling procedure
illustrated in this manual until you remove
the rechargeable battery unit.
2)
Temporarily tighten the screw “A” in the
illustration, taking care not to tighten it
excessively.
3)
Install the oscillating weight wheel and
oscillating weight and then tighten the
oscillating weight screw.
Screw “A”
