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PARTS LIST / TECHNICAL GUIDE
ANALOGUE SOLAR Cal. V195A
[SPECIFICATIONS]
Item
3 hands (hour, minute, small second hands)
Calendar display
Stopwatch (second, hour, minute)
Small alarm display (hour, minute)
Motion of the second hand
Driving system
Additional function
Normal position
Crown operation
1st click position
2nd click position
Loss/Gain
Regulation system
Gate time for rate measurement
Current consumption
Coil resistance
Power generator
Rechargeable battery
Power
supply
Operating voltage range
Power reserve
Number of jewels
Cal. No.
One-second intervals
Stepping motor 4 pieces
Energy depletion forewarning function (The second hand moves at two-
second intervals.)
Overcharge prevention function
Power reserve indicator
Electronic circuit reset function
Second hand stop function
Daily alarm
Instant setting device for calendar
System reset function
World time function
Stopwatch function..........60-minute stopwatch in 1/5-second increments
Stopwatch, Power reserve display
Time setting of alarm, Calendar setting
Time setting, Setting "0" of stopwatch hand, System reset
Monthly rate:less than 15 seconds (worn on the wrist at temperature range
between 5 to 35 degrees Centigrade)
Nil
Use 10-second gate
Movement: less than 0.95 μA
4002 567
(COIL BLOCK) (COIL BLOCK FOR CHRONOGRAPH 1/5 - SECOND)
4002 568
(COIL BLOCK FOR INDICATOR) (COIL BLOCK FOR ALARM)
Solar power generation system
MT920 Manganese titanium-lithium rechargeable battery
0.90V - 2.10V
From full charge to stoppage: Approximately 6 months
Nil
V195A
Diameter:
Outside 27.6 mm
Casing 27.0 mm
Height:
4.4 mm
(Auto stop measuring at 60 minutes)
Accumulated elapsed time measurement
Split time measurement
Single-time alarm function
Stopwatch hand position adjustment
Circuit block: less than 0.30 μA
1.40 - 1.80 kΩ
1.30 - 1.70 kΩ
1/24
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Summary of Contents for Seiko V195A
- Page 1 PARTS LIST / TECHNICAL GUIDE ANALOGUE SOLAR Cal. V195A [SPECIFICATIONS] Cal. No. V195A Item 3 hands (hour, minute, small second hands) Diameter: Outside 27.6 mm Calendar display Casing 27.0 mm Stopwatch (second, hour, minute) Height: 4.4 mm Small alarm display (hour, minute)
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Page 2: Specifications
Cal. V195A SPECIFICATIONS FEATURES The Cal. V195A is a solar alarm chronograph epuipped with a calendar function. l Solar power generation system The watch operates while charging electricity by converting light received on the dial to electrical energy. It lasts for 6 months after full charge. -
Page 3: Parts List
PARTS LIST Cal. V195A Order of disassembly: 1 1 Order of assembly: Lubricating: Types of oil Oil quantity AO-3 Normal quantity AO-2 Piezoelectric Element 4589 801 Hour, Minute Case Back and Small Second Hands, Chronograph Hands (Hour, Minute and 1/5... - Page 4 PARTS LIST Cal. V195A Date Dial Guard Screw (2pcs.) 0012 354 Date Dial Guard 0808 523 Date Dial 0878 *** Date Dial Guide Plate Screw 0012 354 Date Driving Wheel 0802 580 Guide Plate for Date Dial 0712 507 24-Hour Wheel for Alarm...
- Page 5 PARTS LIST Cal. V195A 21 Battery Clamp Screw （3 pcs.） 0022 230 22 Rechargeable Battery Clamp 4225 677 23 Rechargeable Battery Block 3023 24D 24 Circuit Block Cover Screw （3 pcs.） 0022 459 25 Circuit Block Cover 4461 599 26 Conducting Plate...
- Page 6 PARTS LIST Cal. V195A 30 Pin for Train Wheel Bridge 0027 974 31 Train Wheel Bridge 0125 527 32 1/5-Second Counting Wheel 0888 501 33 Small Second Wheel 0240 521 34 Fourth Wheel and Pinion 0241 583 35 Third Wheel and Pinion...
- Page 7 PARTS LIST Cal. V195A 45 Coil Block for Alarm 46 Coil Block 4002 568 4002 567 47 Coil Block for Chronograph 1/5-Second 4002 567 48 Coil Block for 49 Switch Lever A Indicator 4450 703 4002 568 50 Alarm Rotor...
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Page 8: Solar Cell
4025 569 Note: Sollar cell differs according to each caliber. CIRCUIT BLOCK 4000 970 Make sure to hole position on a CIRCUIT BLOCK for V195A in order to distinguish from others. Cal. V198A No hole No hole Cal. V195A Hole... - Page 9 PARTS LIST Cal. V195A l Tools and consumables required for disassembling/reassembling • Movement holder UNIVERSAL MOVEMENT HOLDER (S-682) • Watch oils SEIKO watch oils (AO-3 and AO-2) and SEIKO watch grease S-6 AO-2 AO-3 9/24...
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Page 10: Technical Guide
Cal. V195A TECHNICAL GUIDE REMARKS ON DISASSEMBLING AND REASSEMBLING HANDS Fig. 1 • How to install * Match the polarity of the ROTORs for stopwatch and alarm, and then install the hands. Check that the voltage of rechargeable battery exceeds 1.2 V and the watch is working. - Page 11 TECHNICAL GUIDE Cal. V195A REMARKS ON DISASSEMBLING AND REASSEMBLING THE MOVEMENT ④ SOLAR CELL ⑤ HOLDING RING FOR DIAL * It is not necessary to separate the SOLAR CELL and the HOLDING RING FOR DIAL except in the case that a part needs to be replaced.
- Page 12 Cal. V195A TECHNICAL GUIDE DATE DIAL GUARD < Lubrication > Lubricate DATE JUMPER and the tooth tips of DATE DIAL. RECHARGEABLE BATTERY CLAMP • Reassembling Set the Rechargeable Battery Guard to the guide posts (2 posts), and then tighten the Rechargeable Battery Guard Screws (3 pcs).
- Page 13 TECHNICAL GUIDE Cal. V195A RECHARGEABLE BATTERY BLOCK • Reassembling Set the notched portion of the Rechargeable Battery Block to the guide post, and check that the hooking portion of the Rechargeable Battery Block touches the (-) output terminal of the Circuit Block.
- Page 14 Cal. V195A TECHNICAL GUIDE CIRCUIT BLOCK COVER • Disassembling 1. Loosen the 3 CIRCUIT BLOCK COVER SCREWs. 2. Release the 4 hooking portions of the CIRCUIT BLOCK COVER (indicated by the arrows in the illustration below.) • Reassembling 1. Have the four hooking portions of the CIRCUIT BLOCK COVER (indicated by the arrows in the illustration below) catch the movement securely.
- Page 15 TECHNICAL GUIDE Cal. V195A FRICTION SPRING FOR SECOND COUNTING • Reassembling Slide a part of the SECOND HOLD SPRING under the TRAIN WHEEL BRIDGE. CIRCUIT BLOCK ａ • Disassembling ｅ Taking care not to damage the CIRCUIT BLOCK, remove it from the posts of the TRAIN WHEEL BRIDGE and the screw pins of the MAIN PLATE (refer to a, b, c, d and e in the illustration).
- Page 16 Cal. V195A TECHNICAL GUIDE PIN FOR TRAIN WHEEL BRIDGE • Disassembling Turn the PIN FOR TRAIN WHEEL BRIDGE counter clockwise by 90 degrees, and loosen it. • Reassembling Set the PIN FOR TRAIN WHEEL BRIDGE as shown in the illustration, and tighten it by turning clockwise by 90 degrees.
- Page 17 TECHNICAL GUIDE Cal. V195A ● How to identify the gear train parts 44 Minute Wheel for Alarm 43 Center Wheel for 42 Intermediate Wheel 50 Rotor for Alarm 0264 580 Alarm for Alarm 4146 710 0902 502 0950 590 41 Minute Wheel...
- Page 18 Cal. V195A TECHNICAL GUIDE How to lubricate ● SWITCH LEVER A SETTING LEVER YOKE TRAIN WHEEL SETTING LEVER SETTING STEM AＯ 3 Ｓ−６ CENTER WHEEL AND PINION MAIN PLATE ＡＯ2 ＡＯ3 18/24...
- Page 19 “System Reset” * When measuring the current consumption using the SEIKO digital multi-tester (S-860), use the range of 40 μA of SUPPLY V (=1.55 V) & GATE TIME (2S). 5) Wait until a stable measurement becomes available. It usually takes 30 seconds to a few minutes for getting a stable measurement.
- Page 20 1) Connect each probe to the appropriate (-) and (+) input terminal of CIRCUIT BLOCK (please refer to the "Structure of the CIRCUIT BLOCK" below). * When measuring the current consumption using the SEIKO digital multi-tester (S-860), use the range of 40 μA of SUPPLY V (=1.55 V) & GATE TIME (2S).
- Page 21 2) Pull out the crown to the 2nd click in order to reset the circuit. 3) Connect the (-) probe and (+) probe as illustrated. * When measuring the voltage using the SEIKO digital multi-tester (S-860), use the range of V. 4) Expose the watch to the light of a fluorescent lamp (use the one with 15 to 20 watts) at a distance of 5-10 cm while connecting the probes to the watch.
- Page 22 1) Set the SOLAR CELL to the HOLDING RING FOR DIAL. 2) Connect the tester as the below illustration. * When measuring the voltage using the SEIKO digital multi-tester (S-860), use the range of V. 3) Expose the SOLAR CELL to the light of a fluorescent lamp (use the one with 15 to 20 watts) at a distance of 5-10 cm while connecting the probes to the solar cell unit.
- Page 23 5) Compare the difference of the voltage before and after recharging. Refer to the table below for the criteria of the inspection. Table - criteria recharging function Cal. V195A Results after recharging and criteria for checking the function The voltage The battery needs to be inspected and...
- Page 24 TECHNICAL GUIDE Cal. V195A TROUBLESHOOTING IF THE WATCH DOES NOT MOVE PROPERLY AFTER RECHARGING. Without recharging, the power stored in a solar watch begins to decline. The second hand starts moving at 2-second intervals indicating a diminished power reserve and eventually stops completely unless the watch is recharged.
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