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PARTS CATALOGUE / TECHNICAL GUIDE
[SPECIFICATIONS]
Item
Movement
* The liquid crystal panel unit is installed
after the installation of the dial and hands,
and then the movement can be cased to
complete the reassembly procedures.
Outside diameter
Movement size
Height (including
the liquid crystal
panel unit)
Time indication
Driving system
Display system
Additional mechanism
Loss/gain
Regulation system
Measuring gate by quartz tester
Battery
Jewels
Cal. Y911A
Cal. No.
ø33.0 mm
6.9 mm
Analogue section
Step motor (Load compensated
driving pulse type)
• Time display
• Electronic circuit reset switch
• Train wheel setting device
• Battery life indicator
Monthly rate at normal temperature range: less than 20 seconds
Nil
Use 10-second gate.
SEIKO SR927W, Maxell SR927W, Sony SR927W, EVEREADY 399
Battery life is approximately 2 years.
Voltage: 1.55 V
1 jewel
Y911A
3 hands
Liquid crystal panel unit
Digital section
High molecular, dispersion
type liquid crystal display
1/2 multiplex driving system
• Calendar display
• Alarm function (regular alarm
and single-time alarm)
• Hourly time signal function
• Stopwatch function
• Lap time/split time memory
recall function
(x 1.0)
1
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Related Manuals for Seiko Y911A
Summary of Contents for Seiko Y911A
- Page 1 Monthly rate at normal temperature range: less than 20 seconds Loss/gain Regulation system Measuring gate by quartz tester Use 10-second gate. SEIKO SR927W, Maxell SR927W, Sony SR927W, EVEREADY 399 Battery Battery life is approximately 2 years. Voltage: 1.55 V Jewels...
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Page 2: Parts Catalogue
PARTS CATALOGUE Cal. Y911A → Disassembling procedures Figs. : ← Reassembling procedures Figs. : Lubricating: Types of oil Oil quantity Moebius A Normal quantity 4281 609 Contact point spring Liquid crystal panel unit Liquid crystal panel unit Dial ring 4313 609... - Page 3 PARTS CATALOGUE Cal. Y911A 0110 869 System reset comment sheet 0022 247 Battery clamp screw 4225 689 Battery clamp Battery (See the front page.) Winding stem 0022 247 Spacer screw 4457 868 Circuit block cover 4216 609 Insulator for circuit block...
- Page 4 PARTS CATALOGUE Cal. Y911A 4216 608 Insulator for battery 4270 609 Battery connection (–) 0022 247 Battery connection (+) screw 4268 609 Battery connection (+) 4311 609 Output lead terminal 0125 619 Train wheel bridge 0241 929 Fourth wheel and pinion...
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Page 5: Technical Guide
“PULSAR Casing Parts Catalogue” to choose a corresponding winding stem. TECHNICAL GUIDE Cal. Y911A • The explanation here is only for the particular points of Cal. Y911A. • For the repairing, checking and measuring procedures, refer to the “TECHNICAL GUIDE, GENERAL INSTRUCTIONS”. - Page 6 TECHNICAL GUIDE Cal. Y911A III. REMARKS ON DISASSEMBLING AND REASSEMBLING • For disassembling and reassembling of Cal. Y911A, be sure to use the movement holders for exclusive use with the movement. Winding stem setting Winding stem setting position position Movement holder for...
- Page 7 TECHNICAL GUIDE Cal. Y911A • How to install 1) Pull out the winding stem to the first click. 2) Set the slit portion (“A” portion in the illustration below) of the contact point spring to the winding stem, and then insert the contact point spring in the gap between the movement and case.
- Page 8 Liquid crystal panel unit Note: Check that all the four hooks securely catch the movement. Movement holder for exclusive use with Cal. Y911A 3) After installing the liquid crystal panel unit, check that all the segments of the display light up.
- Page 9 TECHNICAL GUIDE Cal. Y911A 3) Set the dial ring to the liquid crystal panel frame so that its thickest rim and the corner having one protrusion are positioned atop and at the upper right, respectively. Thickest rim Protrusion (1 pc.)
- Page 10 TECHNICAL GUIDE Cal. Y911A 24 Battery connection (–) • How to install Set the battery connection (–) to the main plate so that Tube there is no gap between them (“A” and “B” portions in the illustration at right). Main plate Battery connection (–)
- Page 11 TECHNICAL GUIDE Cal. Y911A IV. VALUE CHECKING • Coil block resistance 1.8 KΩ ~ 2.2 KΩ • Upconverter coil resistance 120 Ω ~ 180 Ω • Current consumption Less than 1.3 µA For the whole movement in the “Blank” display: For the whole movement in any digital display with the stopwatch reset: Less than 33.0 µA...
- Page 12 TECHNICAL GUIDE Cal. Y911A • All the segments lit up Follow the procedure below to check that all the segments of the display will light up. 1) Press button “A” in the “Blank” display. 2) Press button “C”. 3) Press button “B”.
- Page 13 TECHNICAL GUIDE Cal. Y911A * In each display, guide marks are displayed to indicate button operations. Check them before operating buttons. * If the watch is left untouched in the display other than the TIME SETTING display for the times specified below, the display will automatically return to the “Blank”display.
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