A
utomatic Chronograph
The crown has 3 positions:
Position 1: Running position and manual winding
Position 2: Correction of date and day
Position 3: Time setting with stop-second
2 Push-buttons:
Push-button at 2 o'clock: Start-stop of chronograph
Push-button at 4 o'clock: Return to zero of chronograph
Chronograph function: First ensure that the crown is in position 1 and that the
chronograph hands are reset to zero.
•
P1.
Upper start/stop control push-button This push-button enables you to start and
stop the chronograph function. Pressing once starts the central second hand. As
soon as the second hand has revolved once around the dial the minute hand is set
into action. Pressing again stops these hands and a third push sets the chronograph
function working again.
•
P2.
Lower return-to-zero push-button After stopping the chronograph by pressing
the upper control push-button P1, press the lower push-button P2 to reset the
counters to zero. This push-button only functions when the counters are stopped.
•
Running second hand:
Most Ball chronographs feature running seconds in the
subdial at 9 o'clock. The
Trainmaster Cannonball
features running seconds at
the unusual 3 o'clock position.
•
Chronograph second hand:
Start and stop by pressing the upper push-button P1.
Reset to zero by pressing lower push-button P2.
•
Minute counter:
Indicates the minutes elapsed from the start time by moving
forward one unit for each complete revolution of the second hand. Reset to zero
by pressing push-button P2.
•
Hour counter:
Indicates the hours elapsed from the start time by moving forward
one unit for each two complete revolutions of the minute counter. Reset to zero by
pressing push-button P2.
