HYT h2 User manual

INSTRUCTION MANUAL AND GUARANTEE
H2

2
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
Thank you and congratulations!
With this HYT watch, you have joined the age of Hydro-Mechanical Horology.
HYT represents the link between traditional watchmaking and uid mechanics.
Whichever model you have chosen, it will be part of the same uncompromising HYT
philosophy, which is to offer the best in traditional watchmaking combined with unlimited
hydro-mechanical creativity.
Grégory Dourde
CEO

3
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
GUARANTEE
In this manual, you can nd the basic instructions for using and maintaining your watch.
Each HYT watch bears an individual identication number, which guarantees both its
authenticity, and that all the work involved in its creation has been supervised by a master
watchmaker.
Each HYT watch is equipped with a uidic module0. The uidic module is the device
which enables the time to be displayed via the meniscus1. The meniscus marks the
boundary between the two immiscible uids in the capillary3. The watch movement drives
the module via the bellows2 xed on the main plate. Only a professional watchmaker
approved by HYT can replace this uidic system. It bears a unique serial number.
The card you received when you purchased your watch is the electronic guarantee
certicate for your HYT watch.
The QR Code on the front of your card gives you access to unique and interactive content,
once you have downloaded the app. This content explains the correct way to use your
watch, with specic videos and texts.
The guarantee is activated upon purchase in our network of approved HYT retailers. You
must present your activated guarantee card to be entitled to the guarantee.
If following your purchase you have not received a conrmation e-mail, please go to
www.hytwatches.com/lounge. Then select the market place corresponding to your mobile.
The app will ask you to scan the QR Code and enter your e-mail, in order to send you a
password.
By downloading this app, you will be able to contact our customer services in a single click
in case of an incident or if you have any questions.
Your HYT watch is guaranteed against all manufacturing defects for ve years from the
date it was purchased, if the watch was purchased from an approved HYT retailer. This
guarantee does not however cover damage caused by incorrect handling or improper use
of the watch.
For any service, repair or maintenance procedure, please ensure you only use retailers
approved by HYT or our customer services.
You can nd the list of our network of approved retailers and our customer services on
our website www.hytwatches.com.
Any repair or maintenance work carried out by third parties who have not been approved
by HYT will automatically void the guarantee. Any damage caused will then have to be
repaired at your expense.

4
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
C
PRECAUTIONS FOR USEPRECAUTIONS FOR USE
Your HYT watch is set and ready to be worn.
The meniscus1in the capillary3 displays the time continuously while the watch is on your
wrist, even if you wear it in extreme temperatures (0°C to +50°C).
Important : If you plan to not wear the watch for
a while, the coloured liquid has to be stored in its
own reservoir (on the left bellows2).
To do this, unscrew the crown and pull it out to
position C (time setting). Allow the coloured liquid
to move into “Zone II” until it starts its retrograde
(ensure the time needed for this movement is
respected). Once the retrograde phase is complete
(coloured liquid in “Zone I”), ensure that the crown
remains in the time setting position C. Your watch
is now ready to be stopped for an extended period.
The capillary3 is then filled with transparent
liquid (it is possible to still see some coloured
liquid in “Zone I”).
Produced and tested to very stringent criteria, the constituent components of your HYT
watch together form an exceptionally water resistant unit (to a depth of 50 metres).
To ensure these qualities are preserved, we recommend that you replace the gaskets
every 3 years. Temperature variations, moisture, perspiration or repeated impacts may
adversely affect its water resistance over the years.
With its water resistant case, your HYT watch is fully washable. It should be cleaned
regularly in lukewarm, soapy water, rinsed and then carefully dried with a soft cloth. After
exposure to sea water, rinse your HYT watch in fresh water.
Zone I Zone II

5
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
1
3
2
4
5
QUICK GUIDE p.7
SCREW-DOWN CROWN p.8
WINDING p.9
SETTING THE TIME p.10
POWER RESERVE
INDICATOR p.13
p.12
DISPLAY TIME EXAMPLES
THERMAL INDICATOR p.14
p.15
CROWN POSITION
INDICATOR (H-N-R)
GLOSSARY p.6
SETTING THE TIME
COUNTER CLOCKWISE p.11

6
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
0. Fluidic module:
To create a liquid time indicator that is compact, wearable and multi-purpose, HYT
has developed a completely new high-tech concept, using two exible bellows at each
end of a capillary tube. The system is sealed in accordance with the most stringent
standards used in the aerospace industry, with each bellow containing immiscible
liquids. The uidic module represents this complete system.
1. Meniscus:
The two liquids are separated by the positive and negative polarities of their respective
molecules that keep them apart like magnetic repulsion. The meniscus marks the surface
separating the liquids in the tube, indicating the time.
2. Bellows:
The bellows are the two reservoirs located at 6 o’clock. They are made of a highly
resistant, exible electro-deposited alloy four times ner than a human hair. The
movement compresses the left-hand bellows which is emptied of its coloured liquid.
The other bellows then lls, and vice versa, moving the liquid within the capillary, and
with it the meniscus which indicates the time.
3. Capillary:
This tube, made from the best quality glass as used in the medical industry, is circular in
shape and contains two immiscible liquids. A nanometric surface treatment is applied
to this inside of the capillary, which enables the two liquids to move smoothly without
adhering to the glass.
4. Retrograde:
When the coloured liquid gets to 6 o’clock (Zone II), it switches to retrograde mode,
owing back to its original position (Zone I).
GLOSSARY

7
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
2
1
4
3
6
A
BC
5
A’
QUICK GUIDE
1. Time display
2. Minute hand
Crown settings
Pos A.: crown screwed down - “N”
Pos A’.: crown (unscrewed) - “N”
Pos B.: winding (pulled out) - “R”
Pos C.: time setting - “H”
(pulled out)
3. Thermal indicator
4. Power reserve indicator
(located on the case back)
5. Crown position indicator (H-N-R)

8
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
A
SCREW-DOWN CROWN
Pos A.
INTRODUCTION
This type of crown provides excellent protection to ensure the case is water resistant.
The crown must be unscrewed before changing the watch settings and screwed back
down afterwards.
HOW TO USE
• Unscrew the crown before changing the watch settings
• Afterwards, push the crown back in against the case and screw it back down
• Check from time to time that the crown is fully screwed down.

9
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
B
A
WINDING
Pos B.
INTRODUCTION
This function ensures that the power required to drive your watch is stored by the
movement.
HOW TO USE
• Unscrew the crown before changing the watch settings “A”
• Wind the watch by turning the crown clockwise “B”
• Afterwards, push the crown back in against the case and screw it back down “A”.
The power reserve indicator
is visible on the case back
of the H2

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HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
C
B
SETTING THE TIME
Pos C.
10 minutes = 1 crown movement
= 1 sec of manipulation
INTRODUCTION
This function allows the time shown on your watch to be set using the crown.
IMPORTANT
• Moving the microuids within the capillary3 should be approached with as much
caution as setting a perpetual calendar or a minute repeater
• We highly recommend that the uid is only moved 10 minutes with each movement
of the crown
• This should mean that moving the fluid a full hour takes no more than 12 seconds.
HOW TO USE
• Unscrew the crown and pull it out to position “C”
• Then turn the crown in either direction until the coloured liquid (hour display) and the
minute hand is at the time required
• Push the crown in completely against the case
• Do not forget to screw in the crown completely to ensure its water resistance.
RETROGRADE
• The automatic return of the coloured liquid
(retrograde)4 is allowed by the pressure of the two
bellows2. The speed is higher when the retrograde4
starts in “Zone II” and is minimal when the liquid
approaches its starting point in “Zone I”. Zone I Zone II

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HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
Zone I
IMPORTANT NOTICE
A spring is loaded to activate the jumping section of the minute hand when it reaches
“30”. When setting the time counter clockwise, the minute hand must go back up to the
minute “50” in order to load the spring.
EXAMPLE
At 4:15 you want to set your watch at 3:15
INCORRECT HANDLING
T1: 4:15 T2: time set
directly to 3:15
T3: NO jump
at 3:30
Result: at 3:45 the
hand shows 3:37
CORRECT HANDLING
T1: 4:15 T2: set the time
counter clockwise
to 3:15
T3: jump
at 3:30
Result: at 3:45
the uid and the
hand show 3:45
T’: set the time
counter clockwise
to 2:50
It is completely possible to set your watch counter
clockwise.
Warning: counter clockwise movement of the crown
must be stopped immediately if the coloured liquid is
no longer visible or if it is stored in “Zone I”.
SETTING THE TIME COUNTER CLOCKWISE

12
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
DISPLAY TIME EXAMPLES
2) 10:35 am
3) 5:50 pm
1) 6:30 am

13
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
POWER RESERVE INDICATOR
Empty Full
INTRODUCTION
This power reserve indicator function provides a real-time display of your watch’s power,
thereby indicating how long it will continue to run without the spring being rewound.
To observe this indication, you have to turn the watch over.
HOW TO USE
The two barrels use two different signals: “LOW”, located on the left barrel, and “HIGH”
on the right barrel (see the image above).
When the mainsprings are wound, the arrow points to the “HIGH” signal; the power
reserve is “full”, representing 8 days of power reserve.
When the mainsprings are unwound, the arrow points to the “LOW” signal; the power
reserve is “empty”, and the movement needs to be wound (see WINDING)
To ensure optimal operation of the watch, we recommend that you check the movement
is fully wound (see WINDING).

14
HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
THERMAL INDICATOR
INTRODUCTION
This thermal indicator shows if the watch is in its optimal temperature range to be handled.
When the hand points to the  area, the temperature of the watch is less than 15°C. In
this case, we recommended that handling of your watch is avoided - particularly any
retrograde4 movement.
When the hand points to the area, the temperature of the watch is higher than 15°C.
The watch can be handled with care (see SETTING THE TIME).
The hand will move back to the white area after your watch is worn for 30-40 min.
<15°C >15°C

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HYT SA - Route des Falaises 74
2000 Neuchâtel - Switzerland
Phone + 41 32 323 27 70
www.hytwatches.com
CROWN POSITION INDICATOR (H-N-R)
INTRODUCTION
The crown-position hand (H-N-R) lets you know whether you are in time setting mode (H),
power reserve winding mode (R) or in the centre (N), when the crown is in its original position.
Neutral
position
(P. 8)
Time setting
position
(P. 10)
Winding position
“Remontage”
(P. 9)