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Quartz chronographs L538
How to use your Longines chronograph
When used as a watch, the Longines calibre L538 quartz chronograph
shows the hour, minute, seconds and the date in a window.
In its chronograph function, this model can time events lasting up
to 30 minutes, while displaying the results to the nearest 1/10
th
of a second.
• Quick time zone and date adjustment.
• The hour and minute are displayed by the 2big central hands.
• The small seconds are displayed on the counter at 6 o'clock.
• The 30-minute chronograph displays the minute, seconds and
tenths of a second.
• Quick-moving chronograph counter hands.
• Electronic quartz movement with 5motors and 6 hands.
• Hour with time zone mechanism, minute and jumping small
seconds.
• The time measurement and hand movements are managed by
a microcontroller.
*PowerDrive technology:
PowerDrive controls the chronograph motors, and is able to boost
the hand travel speed to more than 200 Hz (i.e. 200 hand jumps
per second in both rotation directions).
This technology improves the hand movement control, which
makes for a highly dynamic display. PowerDrive also enables
numerous counter programming options.
60-second counter
30-minute counter
3-position crown
Hour hand
Small seconds
2 31
L538
Minute hand
1/10
th
of a second counter
Push-piece A
Start – Stop
Date window
Push-piece B
Split and reset
L538
Book_I.indb 93 13.08.19 10:57
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