Bremont ARGONAUT Fiche technique
ARGONAUT
TECHNICAL NOTES
ARGONAUT
TECHNICAL NOTES
Bremont Watch Company would
like to congratulate you most
sincerely on your purchase of a
Bremont timepiece.
Our timepieces have been
developed over several years to
cater for those that demand more
out of their mechanical watch. Our
aim has always been to produce
beautifully engineered timepieces
of exceptional quality that will last
several lifetimes, and ones that feel
particularly special when placed on
the wrist.
GB
III III
1
2
I
II
III
3
4
5
6
Hour hand
Minute hand
Seconds hand
Date indicator
Setting crown (I, II & III)
*Unscrew crown anticlockwise
to activate position I
Rotating internal bezel crown
*Unscrew crown anticlockwise
to activate.
1
2
36
USING THE SETTING CROWN (POSITIONS I, II & III)
WATCH FEATURES
I Manual winding
II Rapid correction of date
III Position for setting the time with stop second and correction of the
date at every passing of midnight
Do not use the rapid date change function between 20:00 and
03:00 as this may damage the date change mechanism
4
5
CHANGING THE STRAP
REMOVING A STRAP
Use the end of your watch tool to
carefully lever the spring bar out
of the lug.
FITTING A STRAP
Place one end of the spring bar
into the hole in the lug and use the
end of the watch tool to lever the
other end into position.
ARGONAUT
AUTOMATIC CHRONOMETER
Your Bremont watch shows you the time in hours, minutes and seconds,
and the date. The mechanical movement with automatic winding has a
free-swinging rotor that keeps the mainspring wound via the motion of
your wrist. The movement in your Argonaut has 25 jewels, runs at 28,800
bph and has a 42-hour power reserve once fully wound. The watch is
water resistant to 300m (30ATM) and the dial is protected by a dual anti-
reflective sapphire crystal that is retained securely in the case.
To ensure that this rather special watch continues to run beautifully for
years to come you must follow a few important operating instructions...
WINDING THE WATCH
Your watch has a screw-in crown. The purpose of the screw-in crown is
to protect the watch from penetrating water and to avoid unintentional
adjustment of the time or date. To unscrew the crown, rotate the crown
in an anti-clockwise direction where it will automatically assume position
I. This position is also the winding position for the watch, where you can
manually wind the watch by hand. The movement will automatically start
with just a few revolutions of the rotor, however it is better to wind the
movement fully with 65 revolutions of the crown. By doing this you will
achieve maximum accuracy and have a power reserve of 42-hours, even
when the watch is not on your wrist.
SETTING THE DATE AND DAY
You can adjust the date by pulling out the crown to position II. You will
now be able to change the date by rotating the crown anti-clockwise.
Do not change the date between 20:00 and 03:00
For models which feature the day, you can adjust from this crown position by
rotating it anti-clockwise.
SETTING THE TIME
Pull the crown out to position III, this will stop the movement, you can
now position the minute hand exactly. To start the second hand, push the
crown back to position I. When setting the time, it is worth noting that
the date change always takes place at mid-night (00:00). If this change has
already taken place at 12:00 noon, you must move the hands forward by
12 hours. Ensure that the crown is screwed back in after setting the watch.
This can be achieved by gently pressing the crown down whilst rotating it
in a clockwise direction.
USING THE ROTATING BEZEL
Your Argonaut has a internal rotating bezel which can be used to keep track
of elapsed time. For example, if the time on your watch reads 12:20, align the
triangle on the bezel with the minute hand. Now, say the time is 12:40, the
minute hand position will point towards 20 on the bezel, indicating that 20
minutes of time has elapsed.
CHRONOMETER TESTING
Your Bremont watch is chronometer tested to ISO 3159 standard and
accompanied by a performance certificate to show that the mechanical
movement has passed all of the rigorous precision tests - a necessity of
the chronometer designation.
The chronometer testing, which takes 15 days to complete over several
different temperature ranges and watch positions, means that the average
daily variation rate will be between -4 and +6 seconds. With 86,400
seconds in a single day, this gives Bremont’s watches an accuracy of
99.998%.
Remember to complete and return the registration card to Bremont to
register your watch and validate your warranty.
WATCH CARE
Bremont watches are put through extensive testing before they are released
from the workshop - whether it is for time-keeping precision, temperature,
shock and scratch resistance or pressure testing; all of our strict tolerances have
to be met. Although Bremont watches have more than proved their resilience
before they are released from our workshop, we want to ensure that the
enjoyment that comes from wearing a Bremont timepiece lasts generations. We
therefore recommend that the following tips for watch care are observed...
CLEANING
Use warm water followed by a microfibre cloth to clean metal and
sapphire.
CROWN
Ensure that the crown is screwed in to prevent entry of water into
the mechanism.
SEA WATER
Wash with fresh water following exposure to saline water.
SHOCKS AND JOLTS
Avoid any heavy shocks to the watch.
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