Related Manuals for Seiko 7T92A
Summarization of Contents
III. REMARKS ON DISASSEMBLING AND REASSEMBLING
Hands
Instructions for handling and installing watch hands, emphasizing care for plastic components.
Dial
Guidance on safely removing the watch dial, particularly its legs, to prevent damage.
Circuit block cover
Procedures for removing and installing the circuit block cover, including screw tightening precautions.
Friction spring for second counting
Steps for setting the friction spring for second counting under the train wheel bridge.
Circuit block
Instructions for handling the circuit block, its removal from guide pins, and secure installation.
Pin for train wheel bridge
Methods for removing and installing the pin for the train wheel bridge, with lubrication notes.
Train wheel bridge
Guidelines for installing the train wheel bridge, ensuring proper alignment of wheels and rotors.
Wheels and pinions
Details on interchangeable wheels and rotors for different calibers, and their setting positions.
IV. VALUE CHECKING
Coil block resistance
Measurement values for coil block resistance across various chronograph and alarm functions for different calibers.
Current consumption
Specifications for measuring current consumption of the whole movement and circuit block alone.
V. FUNCTION CHECKING
Time setting and stopwatch hand position
Procedure for setting time and resetting stopwatch hands to the '0' position after battery change.
Stopwatch function
Steps for checking stopwatch operation, including resetting hands and ensuring crown position.
ALARM FUNCTION (Only for Cal. 7T62A)
To Set the Alarm Time
Detailed steps for setting the alarm time using the crown and button presses.
To Readjust the Designated Alarm Time
Procedure to adjust the already set alarm time using the crown and button actions.
To Cancel the Alarm
Instructions on how to cancel the alarm function by resetting alarm hands to the current time.
VI. TROUBLESHOOTING
The watch stops operating.
Troubleshooting steps for a watch that has stopped, covering battery, engagement, and coil issues.
The current consumption for the whole movement exceeds the standard value.
Diagnosing high current consumption for the whole movement, checking for dirt or oil issues.
The current consumption for the circuit block alone exceeds the standard value.
Diagnosing high circuit block current, checking for external light interference.
The date dial shows an abnormal movement.
Resolving abnormal date dial movement by checking engagement with the date driving wheel.
The date dial does not move.
Troubleshooting a non-moving date dial by checking the date jumper's engagement.
The date does not change.
Addressing issues where the date fails to change, checking the date jumper's condition.
One or more hands of the stopwatch or alarm have stopped moving or show an abnormal movement.
Troubleshooting stopped or abnormal stopwatch/alarm hands due to coil breaks or excessive load.
The step motor shows an abnormal movement.
Diagnosing abnormal step motor movement by checking for cracks in the circuit block switch pattern.
The buttons do not operate normally.
Resolving issues with buttons not operating correctly, often due to insufficient oil.
The alarm does not sound. (For 7T62A only)
Troubleshooting the alarm not sounding, checking for broken upconverter coils or piezoelectric elements.
The alarm sound is too small. (For 7T62A only)
Addressing low alarm sound issues by checking piezoelectric element alignment or replacement.
The crown falls off.
Fixing a detached crown by checking the winding stem, setting lever, and yoke engagement.
The current consumption exceeds the standard value.
Investigating excessive current consumption potentially caused by friction on hands.
Small amount of water/blur inside of the glass persists.
Addressing water ingress by investigating water resistance deterioration and cleaning the watch.
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