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PARTS LIST / TECHNICAL GUIDE
ANALOGUE SOLAR Cal. V137A
[SPECIFICATIONS]
Item
3 hands
(hour, minute and small second
hands)
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 1 piece (Load compensated driving pulse type)
•
Energy depletion forewarning function (The second hand moves at two-second
intervals.)
•
Overcharge prevention function
•
Electronic circuit reset function
•
Second hand stop function
•
Date calendar
•
Instant setting device for date calendar
Free
Date setting (clockwise)
Time setting
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 0.75 μA
Circuit block: less than 0.30 μA
Coil block: 1.60-2.20 kΩ
Solar power generation system
MT621 Manganese titanium lithium rechargeable battery
0.90V - 2.20V
From full charge to stoppage: Approximately 6 months
2 jewels
V137A
Diameter:
Outside 18.5 mm
Casing 18.1 mm
Height:
2.6 mm
1/18
17.5 mm (between 3 o'clock and
9 o'clock )
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Summary of Contents for Seiko V137A
- Page 1 PARTS LIST / TECHNICAL GUIDE ANALOGUE SOLAR Cal. V137A [SPECIFICATIONS] Cal. No. V137A Item Diameter: Outside 18.5 mm 3 hands 17.5 mm (between 3 o’clock and 9 o’clock ) (hour, minute and small second hands) Casing 18.1 mm Height: 2.6 mm...
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Page 2: Parts List
PARTS LIST Cal. V137A FEATURES Cal. V137A is an analogue watch with a solar power generation system. 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 Cal. V137A Types of oil Oil quantity AO-3 Small quantity Order of disassembly: AO-2 Normal quantity Order of assembly: Liberal quantity 1 HOUR, MINUTE AND SECOND HANDS 9 DATE DIAL GUARD 0808 891 2 DIAL 10 DATE DIAL...
- Page 4 PARTS LIST Cal. V137A 14 RECHARGEABLE BATTERY BLOCK 3026 24X 15 CIRCUIT BLOCK COVER SCREW (3PCS.) 0022 247 16 CIRCUIT BLOCK COVER 4461 548 17 CIRCUIT BLOCK 4000 775 Please see the remarks on the following pages. 4/18...
- Page 5 PARTS LIST Cal. V137A 18 TRAIN WHEEL BRIDGE 0125 517 19 FOURTH WHEEL AND PINION 0241 173 21 FIFTH WHEEL AND PINION 20 THIRD WHEEL AND 0701 904 PINION 0231 904 22 STEP ROTOR 4146 907 23 MINUTE WHEEL 0261 904...
- Page 6 How to find the correct parts, if not determined by 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 the corresponding parts.
- Page 7 PARTS LIST Cal. V137A 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) AO-2 AO-3 7/18...
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Page 8: Technical Guide
Cal. V137A TECHNICAL GUIDE REMARKS ON DISASSEMBLING AND REASSEMBLING DIAL • How to install Set the notched portions of the DIAL to the guide posts (4 posts) of the HOLDING RING FOR DIAL, and check that the DIAL is fixed in position. - Page 9 TECHNICAL GUIDE Cal. V137A <Reassembling> 1. Set the 2 hooking portions to 12 o’clock and 6 o’clock positions as shown in the illustration. 2. Gently push the hooking portions of HOLDING RING FOR DIAL so that they catch the main plate securely.
- Page 10 Cal. V137A TECHNICAL GUIDE CONTACT POINT SPRING FOR SOLAR CELL Set 3 pcs of CONTACT POINT SPRING FOR SOLAR CELL at the correct position as shown in the illustration. Note: While other solar movements normally use 2 pcs of CONTACT POINT SPRING FOR SOLAR CELL, 3 pcs are used in Cal.
- Page 11 TECHNICAL GUIDE Cal. V137A <Lubrication> Lubricate the contact point with DATE DIAL and the center pipe. AO-3 RECHARGEABLE BATTERY BLOCK <Reassembling> Set the (-) lead terminal of the RECHARGEABLE BATTERY BLOCK to the correct positon as shown in the illustration below, and check that the (-) lead terminal touches the conducting pin.
- Page 12 Cal. V137A TECHNICAL GUIDE CIRCUIT BLOCK COVER SCREW <Disassembling> A PART 1. Loosen the 3 CIRCUIT BLOCK COVER SCREWs. 2. Release the 3 hooking portions of the CIRCUIT BLOCK COVER indicated by the arrows in the illustration below. <Reassembling> 1. Set the 3 hooking portions of the CIRCUIT BLOCK COVER and make sure it catch the movement securely.
- Page 13 TECHNICAL GUIDE Cal. V137A TRAIN WHEEL SETTING LEVER SETTING LEVER YOKE YOKE <Reassembling> Refer to the illustration to check the setting SETTING LEVER position of the parts. TRAIN WHEEL SETTING LEVER MINUTE WHEEL SETTING STEM SETTING STEM <Lubrication> MAIN PLATE <Lubrication>...
- Page 14 2) Connect the (-) probe and the (+) probe as shown in the illustration. Do not remove them until measurement is finished. * When measuring the current consumption using the SEIKO digital multi-tester (S-860), use the range of 40μA of SUPPLY V (=1.55V) & GATE TIME (2S).
- Page 15 1) Connect each probe to the appropriate (-) and (+) input terminal of 17 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 40μA of SUPPLY V (=1.55V) & GATE TIME (2S).
- Page 16 2) Pull out the crown to the 2nd click position 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.
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Page 17: Fluorescent Lamp
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. 2) Expose the SOLAR CELL to the light of a fluorescent lamp (use the one with 15 to 20 watts) at a distance of 5 –... - Page 18 Refer to the table below for the criteria of the inspection. 5 – 10 cm Table - criteria recharging function Cal. V137A Results after recharging and criteria for checking the function The voltage The battery needs to be inspected and...