Breguet 3880 Mode D'emploi page 10

reached. This correction is made in one-
hour jumps. This operation does not affect
the reference time.
Push the crown to position 2 and screw
it into position 1 by turning it clockwise
( ).
Using the time zone when
travelling
The time zone function allows the cen-
tral time display HF to be changed with-
out altering the reference time (the HR
and H24 hands). The date D remains
indexed to the time displayed in the cen-
tre HF.
To change the time zone, unscrew the
crown by turning it anti-clockwise (M),
then pull it out to position 3. Move the
central hand HF forward or backwards
with a jump of one hour for each time
zone. Push the crown to position 2 and
screw it into position 1 by turning it
clockwise ( ).
Correcting the date
To change the date D, unscrew the
crown by turning it anti-clockwise (M),
then pull it to position 3. Change the
time HF in one-hour jumps forward or
backwards until the desired date is dis-
played. This operation does not alter the
reference time HR. Push the crown into
position 2 and screw it into position 1
by turning it clockwise ( ).
Chronograph functions
Push-piece I: starts and stops chrono-
graph
One press on push-piece I starts the
chronograph function: the 2 chrono-
graph hands start to turn indicating 30
seconds per revolution S30 and 60 min-
utes per revolution M60.
A second press on push-piece I stops the
chronograph hands for reading the tim-
ing or for dead time.
A third press on push-piece I restarts the
function without resetting to zero.
Reading the time measured by the
chronograph
1. Reading the minutes
Minutes are indicated by the hand of the
minute counter M60 on the "BASE 60"
inside scale B60.
2. Reading the seconds
Seconds are indicated by the seconds
hand S30 on the "BASE 30" outside
scale B30 (05/35, 10/40, 15/45,
English