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Frequency and Timekeeping| frequency of crystal oscillator | 32, 768 Hz |
|---|---|
| loss/gain (monthly rate) | Less than 20 seconds |
| operational temperature range | –5° C ~ +50° C |
Display and Driving System| driving system | Step motor, 3 pieces |
|---|---|
| display system | Hour, minute and second hands |
| stopwatch measurement | up to 60 minutes in 1/10 second increments |
Battery and IC| battery type | Miniature silver oxide battery SEIKO SR920SW |
|---|---|
| battery quantity | 1 piece |
| integrated circuit type | C-MOS-LSI |
Explains how to interpret the stopwatch hands, including an example for clarity.
Details the behavior of the 1/10 second hand during various stopwatch measurement phases.
Outlines the basic steps for using the stopwatch for standard time measurements.
Explains the procedure for measuring cumulative time intervals with the stopwatch.
Details the process for measuring and recording intermediate times during a single timing event.
Procedure to calculate a vehicle's average speed using the tachymeter scale.
Procedure to calculate the number of jobs completed within an hour using the tachymeter.
Important warnings and cautions regarding battery removal, storage, and safety.
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