Seiko V110A Installationshandbuch

[SPECIFICATIONS]

Cal. No.

Item V110A

Movement

(x 2.0)

Movement

size

PARTS CATALOGUE /TECHNICAL GUIDE

Cal. V110A

15.55 mm between 12 o’clock and 6 o’clock sides

11.80 mm between 3 o’clock and 9 o’clock sides

Outside diameter

15.15 mm between 12 o’clock and 6 o’clock sides

11.80 mm between 3 o’clock and 9 o’clock sides

Time indication Two hands (Moves at 20-second intervals)

Height 2.09 mm

Casing diameter

Driving system Step motor (Load compensated driving pulse type)

Loss/gain Monthly rate at normal temperature range: less than 20 seconds

Regulation system Nil

Measuring gate by quartz tester Use 10-second gate.

Power

supply Solar power systemPower generator

Rechargeable

battery

Expected life per charge From full charge to stoppage: Approx. 5 months

Titanium lithium ion rechargeable battery

Additional mechanism • Electronic circuit reset switch

• Overcharge prevention function

0 jewelsJewels

PARTS CATALOGUE

Disassembling procedures Figs. : 1 →26

Reassembling procedures Figs. : 26 →1

Lubricating: Types of oil Oil quantity

Moebius A Normal quantity

Moebius F

➡Please see the remarks on the following pages.

Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.

Cal. V110A

0022 221

• Circuit block cover screw (2 pcs.)

• Train wheel bridge screw (1 pc.)

2 Dial

1 Hour and minute hands

3 Case ring

Movement

4 4020 575

Solar cell unit

7 0271 946

Hour wheel

6 0491 735

Dial washer

5 4246 644

Solar cell lead

terminal

Remarks on removing the winding stem

·To remove the winding stem, push the

setting lever using something with a

pointed, as the hole for pushing it is

very small.

·Indoingso,takecarenottodamagethe

circuitblockboardplacednearthehole.

PARTS CATALOGUE Cal. V110A

➡Please see the remarks on the following pages.

Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.

18 0281 807

Setting wheel

19 0384 806

Yoke

20 0261 808

Minute wheel

8 0022 221

Circuit block cover screw

9 4457 901

Circuit block cover

24 0282 806

Clutch wheel

25 4239 909

Rotor stator

26 0100 969

Main plate

21 0389 909

Setting lever spring

22 0383 806

Setting lever

23 Winding stem

17 0221 967

Center wheel and pinion

16 4146 557

Step rotor

15 0231 811

Third wheel and pinion

14 4002 909

Coil block

13 0125 908

Train wheel bridge

12 0022 221

Train wheel bridge screw

11 3027 26T

Rechargeable battery unit

10 4000 657

Circuit block

PARTS CATALOGUE Cal. V110A

Remarks:

3 Case ring 8280 562

The type of case ring is determined based on the design of cases. Check the case number and refer to

“SEIKO Casing Parts Catalogue” to choose a corresponding case ring.

23 Winding stem 0351 861

The type of winding stem is determined based on the design of cases. Check the case number and refer

to “SEIKO Casing Parts Catalogue” to choose a corresponding winding stem.

TECHNICAL GUIDE Cal. V110A

•The explanation here is only for the particular points of Cal. V110A.

•For the repairing, checking and measuring procedures, refer to the “TECHNICAL GUIDE, GENERAL

INSTRUCTIONS”.

I. STRUCTURE OF THE CIRCUIT BLOCK

Coil output terminal

Crystal unit

Input terminal (+)

Input terminal (–)

C-MOS-IC

II. REMARKS ON DISASSEMBLING AND REASSEMBLING

For disassembling and reassembling, be sure to use the universal movement holder.

2 Dial

•How to install

Set the notched portions of the dial to the

guide protrusions “A” and “B” of the case

ring,and check that the dial is fixed in position.

Note: When checking the assembling of the

hands, hold the dial securely as it easily

comes out of position.

Dial

Guide protrusion

“B” of

the case ring

Guide protrusion

“A” of

the case ring

TECHNICAL GUIDE Cal. V110A

9 Circuit block cover

3 Case ring

•How to install

·The case ring has two protrusions at the “a”

and“b” portions as shown in the illustration

at right, and it is fixed to the movement by

the protrusions.

·To install the case ring, push it above the

“a”and “b” portions so that the protrusions

catch the movement securely.

“b” portion

“a” portion

Case ring

4 Solar cell unit

•How to remove

Release the four hooking portions marked

with the arrows in the illustration at right from

the main plate, using tweezers or the like.

•How to install

Push the solar cell unit above the four hooking

portions marked with the arrows in the

illustration at right so that they catch the main

plate securely.

Solar cell

➞

Notes:

* When removing or installing the solar cell unit, take care not to damage the solar cell.

* If the solar cell is damaged, its power generating capacity may be greatly decreased. In that case,

check the output voltage for the solar cell unit, following the procedure in the corresponding section

of this guide. If the voltage is not normal, replace the solar cell unit with a new one.

* If the solar cell is soiled, gently wipe it with a soft chamois or the like soaked with alcohol, taking care

not to damage it.

•How to remove

Remove the two circuit block cover screws,

and then, release the two hooking portions

marked with the arrows in the illustration at

right from the main plate.

•How to install

Set the circuit block cover so that the two

hooking portions marked with the arrows in

the illustration at right catch the main plate

securely, and then, tighten the circuit block

cover screws.

TECHNICAL GUIDE Cal. V110A

11 Rechargeable battery unit

•How to install

Set the “B” portion of the (–) lead terminal of

the rechargeable battery unit to the groove of

the main plate, and then, set the “A” portion of

the (–) lead terminal to the guide post of the

main plate.

Notes:

* Handle the rechargeable battery unit with care

soasnot toshort-circuitits (+)and(–)terminals.

Otherwise, the rechargeable battery unit will

be deteriorated.

* Never wash the rechargeable battery unit as it

is an electronic part.

Rechargeable battery unit

Guide

post

“A” portion of

the (–) lead terminal

“B” portion of

the (–) lead terminal

Lubricating: : Moebius A : Moebius F

15 Third wheel and pinion

16 Step rotor

17 Center wheel and pinion

18 Setting wheel

20 Minute wheel

•Setting position and lubricating

Refer to the illustrations below for the setting position and lubrication of the respective wheels.

Step rotor Minute wheel

Setting wheel

Center wheel

and pinion

Third wheel

and pinion

Third wheel

and pinion

Step rotor

Center wheel

and pinion

Setting

wheel

Minute wheel

TECHNICAL GUIDE Cal. V110A

19 Yoke

21 Setting lever spring

22 Setting lever

Lubricating: : Moebius A

•Setting position and lubricating

Refer to the illustration below for the setting position and lubrication of the respective parts.

• Have the spring portion of the yoke securely

catch the protruded portion of the main plate

(“A” portion in the illustration).

Note: Take care not to install the setting lever

spring upside down. (Refer to the

illustration at right.)

“A” portion

Setting lever spring

Yoke

Spring portion of the yoke

Setting lever

Minute wheel

III. VALUE CHECKING

●Coil block resistance

1.2 KΩ~ 1.6 KΩ

●Current consumption

For the whole movement : Less than 0.22 µA (with voltage supplied from a battery)

For the circuit block alone : Less than 0.16 µA (with voltage supplied from a battery)

1. Remove the solar cell unit.

2. Remove the rechargeable battery unit, and then, reassemble the circuit block, circuit block cover and

two circuit block cover screws.

(As a result, only the rechargeable battery is removed from the movement.)

3. Apply the probes of the tester as shown in the illustration on the next page.

How to measure the current consumption for the whole movement

Note: When applying the minus probe of the tester, take care not to short-circuit the minus probe

and circuit block cover.

4. After checking that a stable measurement is obtained with the tester connected, read the current

consumption.

(As the hands move at 20-second intervals, 3 to 5 minutes may be required before a stable

measurement is obtained.)

TECHNICAL GUIDE Cal. V110A

Note: If the measurement value remains high or unstable, shut out the light from the movement, and

make a measurement again.

1. Apply the probes of the tester as shown in the illustration.

2. Shut out the light from the circuit block.

How to measure the current consumption for the circuit block alone

Note: If the circuit block is exposed to light, an extremely high measurement value may be obtained.

3. After checking that a stable measurement is obtained with the tester connected, read the current

consumption.

●Output voltage for the solar cell unit

Output voltage when the watch is placed at a distance

of 5 cm under a fluorescent light of 15 to 20 watts : More than 2.3 V

1. Connect the tester to the output terminal of the

solar cell unit as shown in the illustration at

right.

Checking procedure

TECHNICAL GUIDE Cal. V110A

2. With the probes of the tester applied, place the

solar cell unit at a distance of 5 cm under a

fluorescent light of 15 to 20 watts, exposing the

solar cell side to the light, and then measure the

output voltage.

5 cm

●Checking the recharging function

A conventional method of checking the recharging function is to check the difference of the rechargeable

battery voltage between before and after a recharge.

1. Apply the probes of the tester as shown in the

illustration at right to measure the voltage of

therechargeable batterybeforerecharge (initial

voltage).

Checking procedure

2. Place the watch at a distance of 5 cm under a

fluorescent light of 15 to 20 watts, and charge it

for 30 minutes.

Notes:

* Use a fluorescent light to charge the watch,

as light sources generating heat may cause

damage to the watch. To charge the watch

efficiently, place it under the center of the

fluorescent tube.

* While charging the watch, make sure that the

watch temperature does not exceed 60°C.

3. After recharging for 30 minutes, apply the

probes of the tester in the same manner as in

step “1” above, and measure the rechargeable

battery voltage while keeping the watch

exposed to the light.

5 cm

TECHNICAL GUIDE Cal. V110A

4. Refer to the table below to determine whether the recharging function is normal or not.

[ Initial voltage and guidelines of normal/defective decision ]

Initial voltage Guidelines of normal/defective decision

The battery is normal if the rechargeable battery voltage obtained after

recharge is more than 1.2 V.

0.5 V ~ 1.00 V

The battery is normal if the rechargeable battery voltage has increased more

than 0.08 V after recharge.

1.01 V ~ 1.2 V

[ For your information ]

●Guideline of charging time (approx.)

Illumination

(lux) Light source Environment

60-watt

incandescent light

Fluorescent light

30-watt

fluorescent light

30-watt

fluorescent light

30-watt

fluorescent light

30-watt

fluorescent light

Sun

500

700

1,000

3,000

5,000

10,000

100,000

Distance

of 60 cm

Office, overhead

Distance

of 70 cm

Distance

of 20 cm

Distance

of 12 cm

Distance

of 3 cm

Cloudy weather

Fair weather

Time required for

full charge

Time required for

steady operation

★1

Time required to

charge 1 day of

power ★2

190 hours

140 hours

100 hours

30 hours

15 hours

8 hours

2 hours

20 hours

16 hours

11 hours

3.5 hours

100 minutes

50 minutes

15 minutes

70 minutes

50 minutes

35 minutes

11 minutes

6 minutes

3 minutes

1 minute

Caution for charging:

To prevent damage to the watch caused by heat from a light source, make sure that the watch temperature

does not exceed 60°C while charging the watch.

★1: The time required to charge 1-day of power after all the energy stored in the rechargeable battery is totally

depleted.

★2: The time required to additionally charge 1-day of power while the watch is in use.

* The above table provides only a general guideline, and actual charging time may differ from model to model.

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