L791 Longines Watch Instruction Manual

: June 5, 2024
: LONGINES

Table of Contents

L791 Longines Watch
INTERNATIONAL WARRANTY
Flyback chronograph
LONGINES WARRANTY CARD
Read User Manual Online (PDF format)
Download This Manual (PDF format)

L791 Longines Watch

Specifications

Manufacturer: Compagnie des Montres Longines, Francillon S.A.
Model: Longines Watch
Water Resistance: Up to 30 bar (300 meters)
Country of Origin: Switzerland

Product Usage Instructions
Setting the TimeTo set the time on your Longines watch:

Unscrew or pull out the crown to the time-setting position.
Rotate the crown to adjust the hour and minute hands to the desired time.
Push in or screw down the crown back to its original position to secure the time setting.

Water Resistance
Follow these guidelines to maintain the water resistance of your watch:

Rinse the watch in soft water after contact with seawater.
Have the water resistance checked annually by an approved
Longines Service Centre.
Avoid activating the crown or push-pieces underwater.
Ensure the crown and push-pieces are secured before water immersion.

INTERNATIONAL WARRANTY

LONGINES is delighted you have chosen a timepiece from its collection, that lives up to the brand’s long-established know-how, based on research combined with technical excellence and timeless elegance.
La Compagnie des Montres Longines, Francillon S.A. grants you, with effect from the purchase date, a twenty-four (24) month warranty on all LON- GINES® watches models and a five (5) year warranty on the automatic watches purchased from January 1, 2021, under the terms set out in this warranty. All watch straps and bracelets are covered by a 24-month international warranty for any material or manufacturing defects. The LONGINES international warranty covers defects in materials and manufacturing that exist at the time of delivery of the LONGINES watch purchased (“defects”). The warranty takes effect only if the warranty certificate has been dated and fully completed by an official LONGINES dealer (“valid warranty certificate”). During the term of the warranty and on presenting the valid warranty certificate, you are entitled to have any defect repaired free of charge. In the event that repairs cannot restore your LONGINES watch to full working order, La Compagnie des Montres Longines, Francillon S.A. undertakes to replace it with an identical LONGINES watch or another LONGINES watch with similar characteristics. The warranty for the replacement watch expires on the same date as the warranty for the replaced watch.

The warranty does not cover:

battery life;
normal wear and tear (such as scratches on the case and/or glass; alteration of the colour and/or material of cases, straps, bracelets and chains made of leather, textile, rubber or any other non-metallic material; the PVD coating; the colour of bronze);
damage to any part of the watch resulting from unsuitable/improper use, neglect, carelessness, accidents (knocks, dents, crushing, scratches when changing the strap/bracelet, etc.), incorrect use of the watch, or failure to follow the instruction manual;
harm of any nature whatsoever resulting directly or indirectly from using the LONGINES watch or from any operational failure, defect or lack of precision in the watch;
a LONGINES watch handled by non-approved person (for example, for the purposes of replacing the battery or carrying out servicing or repairs) or having been altered from its original state other than under the supervision of La Compagnie des Montres Longines, Francillon S.A.
Any other claims against La Compagnie des Montres Longines, Francillon S.A., for example for any kinds of damage or harm other than those set out in this warranty, are expressly excluded, excepting statuto-ry rights that the purchaser can assert against the manufacturer.

This manufacturer’s warranty:

is independent of any warranty that may be provided by the vendor and for which the vendor accepts sole responsibility;
in no way affects the purchaser’s rights against the vendor nor any other statutory right the purchaser may have against the vendor.
Customer Service department of La Compagnie des Montres L ongines, Francillon S.A. ensures your L ONGINES watch is perfectly maintained. If your watch needs servicing, entrust it to an offi-cial LONGINES dealer or an approved LONGINES Service Centre as listed on our website at www.longines.com : their servicing is guaranteed to comply with the standards of La Compagnie des Montres Longines, Francillon S.A.
Compagnie des Montres Longines, Francillon S.A., CH-2610 Saint-Imier, Switzerland.
LONGINES® is a registered trademark.

We are delighted you have become the owner of a L ONGINES watch. We recommend you read this instruction manual carefully before using your LONGINES watch for the first time in order to ensure its correct operation and long life. If you would like more information about your watch or if it is fitted with a complication, you can find detailed information and tutorials by going
to our website at www.longines.com/instruction manual or by scanning the QR code.

Precautions concerning water resistance
A watch’s water resistance can be affected by changes caused by the gaskets drying out, or an accidental shock to the crown. To help maintain your watch’s water resistance, we recommend rinsing it in soft water after any contact with sea water and having its water resistance checked once a year by an approved LONGINES Service Centre. In no circumstances should you open your watch yourself.
IMPORTANT! Never activate the time-setting crown and/or push-pieces when the watch is underwater, and ensure that the crown and push-pieces are pushed in or screwed down before any immersion in water.

The water-resistance values indicated in metres are equivalent to the overpressure applied under standard ISO 22810.

CHRONOGRAPH – L791

A Crown
B Hour hand
C Minute hand
D Chronograph seconds hand (flyback)
F Small seconds
G 30-minute counter
2 Start/ stop push-piece. Start and stop the (flyback) chronograph hand and 30-minute counter
3 Reset push-piece for the (flyback) chronograph hand and 30-minute counter

Hour, minute and seconds display. Can be used to time events lasting up to 30 minutes, displaying the results to the nearest 1/5th of a second.

Screw-in crown
Some LONGINES models are equipped with a screw-in crown, which must be unscrewed before setting the time, correcting the date or winding, by turning it anti-clockwise. After making the settings, return the crown to position 1, then push it back in and screw it in firmly to ensure the watch’s water resistance.

Avoid setting the time while the chronograph function is in use

Setting the time and stop seconds
Pull the crown out to position 2 when the small seconds hand (situated at 9 o’clock) is at 60. Turn the crown either way to the desired time display. As soon as the time is synchronised, push the crown back into position 1.
If you have not been wearing your mechanical watch, it needs to be wound manually through thirty revolutions or so.
Before each timing operation, the chronograph hands must be at their start point.
Standard Start –Stop – Reset

Function
Timing a single event:

Press push-piece 2: the chronograph will start.
Press push-piece 2: the chronograph will stop.
Press push-piece 3 to reset.

Flyback chronograph

An additional function used to reset the chronograph and start a new timing operation instantaneously”.
The chronograph is started and stopped by successively pressing push-piece 2, situated at 2 o’clock.
It is reset by pressing push-piece 3 situated at 4 o’clock – whether the chronograph has stopped or is running (flyback).
If push-piece 3 is pressed when the chronograph is running, all the chronograph indicators are instantly zeroed, to automatically restart a new timing opera-tion. This is known as the flyback function.
Conversely, if the chronograph has been stopped using push-piece 2 and push-piece 3 is then activated, the chronograph indicators are reset and immobilized in this position.
To reset the chronograph, push-piece 3 must be pressed

LONGINES WARRANTY CARD

Scanning the QR code on your watch’s warranty card with your smartphone’s camera gives you ac-cess to the LONGINES website. There you will find the specific instruction manual for your watch, avail-able in 33 languages, together with advice for main-taining your watch and the warranty terms.

$L791 Longines Watch- $1$$