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PARTS LIST / TECHNICAL GUIDE
Analogue Solar Cal. V115 A
Item
• 2 hands (hour, minute hands)
Interval of hands movements
Driving system
Additional function
Normal position
Crown operation
1st click position
Loss/Gain
Regulation system
Gate time for rate measurement
Coil resistance
Power supply
Number of jewels
Cal. No.
Two hands (move at 20-second intervals)
Stepping motor (Load compensated driving pulse type)
• Electronic circuit reset function
• Overcharge prevention function
Free
Time setting, hand position adjustment/resetting the circuit
Monthly rate: Less than 15 seconds (worn on the wrist at the
temperature between -5 ºC and 35 ºC)
Nil
Use 10-second gate.
Movement:
Circuit block:
4002 909: 1.70 – 2.60 KΩ
Power
Solar power system
generator
Rechargeable
MT516F
battery
Operating
1.2 V - 2.2 V
voltage range
Approx. 12 months (from full charge)
Battery life
0 jewel
V115A
• Diameter
Outside: Ø 15.55 mm x 11.80 mm
Casing:
Ø 15.15 mm x 11.80 mm
• Height:
Ø 2.09 mm
Less than 0.22 μA
Less than 0.16 μA
1/16
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Summary of Contents for Seiko V115A
- Page 1 PARTS LIST / TECHNICAL GUIDE Analogue Solar Cal. V115 A [SPECIFICATIONS] Cal. No. V115A Item • Diameter Outside: Ø 15.55 mm x 11.80 mm Casing: Ø 15.15 mm x 11.80 mm • 2 hands (hour, minute hands) • Height: Ø 2.09 mm...
- Page 2 SPECIFICATIONS Cal. V115A Cal.V115A is ladie's 2 hands analogue watch employing a new solar panel (3 cell unit), but the basic movement structure of Cal.V115A is smilar to the previous Cal.V11 Series watches, and the knowledge and technique you have gained in handling the previous Cal.V11 Series watches will come in handy when you repair Cal.V115A.
- Page 3 PARTS LIST Cal. V115A Disassembling procedures Figs. : Reassembling procedures Figs. : Lubricating : Types of lubricant Watch Oil AO-3 Watch Oil AO-2 Lubricant quantity: Normal quantity [SOLAR POWER GENERATION MECHANISM] 1 Hour and minute hands 2 Dial 3 8700 ***...
- Page 4 PARTS LIST Cal. V115A [BATTERY AND ELECTRONC CIRCUIT - GEAR TRAIN MECHANISM AND STEPPING MOTOR SETTING MECHANISM]] 0022 221 Circuit block cover screw 4461 534 Circuit block cover 4000 657 Circuit block 3027 26T Rechargeable battery unit 0022 221 Train wheel bridge screw...
- Page 5 How to find the correct parts, if not determined by the 4-digit caliber number Following parts are determined based on the design of watches, such as hands height, dial color, and design of cases. Please refer to the SEIKO WATCH PARTS CATALOGUE in order to choose corresponding parts.
- Page 6 TECHNICAL GUIDE Cal. V115A REMARKS ON DISASSEMBLING AND REASSEMBLING THE MOVEMENT l How to remove the SETTING STEM before dismantling the movement Crown position: Normal position Push the SETTING LEVER gently (refer to the Fig. 1) in order to disengage it from the SETTING STEM.
- Page 7 TECHNICAL GUIDE Cal. V115A HOLDING RING FOR DIAL (0866 ***) SOLAR CELL (4025 547) The above 2 parts can be disassembled and re-assembled without separating the parts. Please refer to “How to separate the DIAL HOLDING RING and SOLAR CELL.”.
- Page 8 TECHNICAL GUIDE Cal. V115A l Rechargeable battery and electronic circuit RECHARGEABLE BATTERy UNIT • How to install Rechargeable battery unit 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”...
- Page 9 TECHNICAL GUIDE Cal. V115A l Gear train mechanism - Wheel assmbly position and lubrication instructions THIRD WHEEL AND PINION Lubriccating: Types of lubricant STEP ROTOR Watch oil AO-3 CENTER WHEEL AND PINION Watchi oil AO-2 SETTING WHEEL Lubricang quantity: MINUTE WHEEL Normal quantity •...
- Page 10 TECHNICAL GUIDE Cal. V115A l Setting mechanism - Assembly position and lubrication instructions yOKE SETTING LEVER SPRING SETTING LEVER • Setting position and lubricating Refer to the illustration below for the setting position and lubrication of the respective parts. Spring portion of the yoke “A”...
- Page 11 6. Make sure that the read value is less than 0.80 μA. * When measuring the current comsumption using the SEIKO digital multi-tester (S-860), use the range of 40 μA of SUPPLy V (=1.55V) & GATE TIME 2S). 11/16...
- Page 12 After checking that a stable measurement is obtained with the tester connected, read the current consumption. * When measuring the current consumption us- ing the SEIKO digital multi-tester (S-860), use the range of 40 μA of SUPPLY V (=1.55V) & GATE TIME (2S).
- Page 13 TECHNICAL GUIDE Cal. V115A l 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 1.8 V Checking procedure Connect the tester to the output terminal of the solar cell unit as shown in the illustration at right.
- Page 14 TECHNICAL GUIDE Cal. V115A 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 Refer to the table below to determine whether the recharging function is normal or not.
- Page 15 TECHNICAL GUIDE Cal. V115A Checking the general function Operation Function Checkpoint Pull out the crown to the 1st click Make sure that it has and push it back Setting mechanism - a click at the 1st click in to the normal...
- Page 16 TECHNICAL GUIDE Cal. V115A Checking the water resistance Check the water resistance according to the designated specification of the watch. Marking on the case back Test method Applied pressure WATER RESISTANT (WATER RESIST) 3 BAR Air leak test WATER RESIST 5BAR...
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