Longines L599 Mode D'emploi page 7

How to use your Longines
Twin-Aperture Date Calendar watch
This watch is a precise and reliable timepiece intended for daily use; it is
water-resistant and has a sapphire crystal. It is fitted with a self-winding
Longines L599-L601 movement.
It has been designed to indicate the hours, minutes, seconds and the
date.
Functions of the 3 positions of the crown
1. Pushed in
Winding: The natural movement of your wrist will automatically wind
your Longines twin-aperture date calendar watch, which has a power-
reserve of 42 hours. It is only necessary to wind the watch manually if it
has not been worn for several days.
2. Intermediate position
Quick date reset: Turn the crown anti-clockwise to reset the date then
push it right in. It is necessary to reset the date at the end of each month
that has fewer than 31 days.
12
Please note: To avoid damaging the mechanism do not reset the date
between 20.00 hours and 01.00 hours.
3. Pulled out
Adjusting the time and stop seconds: Pull the crown right out; the
seconds hand will stop. Adjust the time by turning the crown in either
direction. When the time indicated is synchronized with an official time
signal (speaking clock, radio, TV) push the crown right in.
Important: Should your watch need repair, it should be sent to a
Longines agent only.
Precautions concerning the water-resistant seal
Your Longines twin aperture watch is water-resistant but the seal may
be damaged without your realising it if the watch is subjected to a
shock. The water-resistant seal should be checked each time the watch
undergoes its regular service.
13