Sinn 104 St Sa A User manual

MODEL SERIES 104

6 –11
12 –13
14 –15
16
17–19
20 – 21
22 – 23
24 – 25
CONTENTS
SINN SPEZIALUHREN ZU FRANKFURT AM MAIN
MODEL SERIES 104
INSTRUCTIONS FOR USE
USING THE PILOT’S BEZEL TO MEASURE TIME
ASSEMBLING AND ADJUSTING OF STRAPS
TECHNICAL DETAILS
ADVICE
SERVICE

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DEAR CUSTOMER,
We know from numerous
conversations that the people
who buy our watches do so out of
conviction. This includes people with
a pronounced affinity to technology
who are fascinated, for example,
by the solutions we have devised
for protection from magnetic fields
and scratch resistance. Some of our
customers, such as divers, pilots and
the German GSG 9 special police
unit, rely on their watches in their
respective careers because their lives
depend on it.
They all swear by the performance,
resilience and durability, as well
as the quality and precision of our
watches. That is why the world’s
largest classification society DNV GL
(formerly Germanischer Lloyd,
Hamburg) regularly tests and certifies
the water and pressure resistance of
our diving watches.

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Selected pilot watches are tested and certified by independent institutions
according to the DIN 8330 Horology – Aviator watches in an extensive and
complex type and unit verification process. This ensures that a DIN 8330-compliant
pilot watch is a suitable all-round replacement for the on-board timekeeping
instruments available to pilots. Functionality is our top priority and ultimately
determines the design. Only the technical features that are really needed can
be found on our watches. Because we believe that products have to speak for
themselves.
The basic question that we ask ourselves is: which innovative technologies and
materials can be employed for our craft and provide solutions for rendering
our watches even more practical for everyday use? It is often worth indulging
in a little lateral thinking to see what is going on in other industrial sectors
or fields of science. We repeatedly go to the limits of physical resources to
upgrade our watches – with the aim of making what’s good even better. Most
of our best developments are yet to come!
I am delighted that you have decided to buy a SINN timepiece and hope that
it will continue to give you pleasure for many years to come.
Yours sincerely,
Lothar Schmidt

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SINN SPEZIALUHREN ZU FRANKFURT AM MAIN
It was back in 1961 that pilot and blind-flying instructor Helmut Sinn founded
the company. Since then, we have been committed to producing high-
specification mechanical watches. In 1994, the graduate engineer Lothar
Schmidt took over the company. This marked the beginning of a new era
for the SINN brand, because the new owner took a decisive step towards
more innovation. Under his leadership, new technologies and materials were
introduced, thus providing the crucial incentives for our company’s evolution
and gradual emergence as an insider’s tip for lovers of fine watches. Today,
our name stands for technical innovations – much to the delight of both the
trade and our customers alike.
Technical innovations
Take, for example, the absolutely condensation-free, anti-reflective, German
Submarine Steel diving watch – made possible by HYDRO Technology. Other
examples include a chronometer chronograph fashioned from a 22-carat
gold alloy that is as hard as stainless steel and a chronometer with a magnetic
resistance of up to 80,000 A/m. There are also watches with a clockwork
mechanism optimally protected from aging by an inert gas and integrated
dehumidifying capsule. The list would not be complete without mentioning
the development of mission timers (Einsatzzeitmesser or EZM in German) for
firefighters, for special police units and border patrol guards. DIAPAL is one of
our most important technological developments, with oiling no longer needed
for the most important functions in the watch thanks to the materials we select.
This technology was first used in 2001. With the aid of TEGIMENT Technology, we
achieve greatly increased scratch resistance through surface hardening.

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Ongoing advancement in technology and quality
Our top priority has always been to develop watches that offer superior
performance – both in daily and in professional use. Which is why our
engineers are working continually to identify which innovative methods,
materials and technologies are best suited for optimising our watches. Each
new development has to first undergo rigorous practical tests before being
incorporated. And no watch leaves our workshops before it has been subjected
to thorough checking and fine adjustment by our master watchmakers.
Innovations in endurance testing
The world’s largest classification
society for maritime safety DNV GL
(formerly Germanischer Lloyd,
Hamburg), has been testing our
diving watches for pressure and
water resistance since 2005. As part
of DNV GL’s official certification
process, our diving watches have
been treated as part of diving
equipment since 2006 and tested
and certified in accordance
with European diving equipment
standards. This is unparalleled in
the watch industry. Selected pilot
watches are tested and certified by
independent institutions according
to the DIN 8330 Horology – Aviator
watches in an extensive and

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complex type and unit verification process. This ensures that a DIN 8330-
compliant pilot watch is not only a suitable all-round replacement for the
on-board timekeeping instruments available to pilots, but is also capable of
remaining unaffected by the physical stresses of flight, posing no risk potential
for the crew or aircraft, and demonstrating compatibility with other on-board
instruments.
The Temperature Resistance Technology keeps mechanical watches
performing at temperatures ranging from − 45 °C to +80 °C. This technology
has proven its worth in the EZM 10 TESTAF, for example, used as part of the
official approvals procedure for Airbus Helicopters (formerly Eurocopter)
EC 145 T2 high-performance helicopter. The 303 CRYSTAL is impressive
proof of the functional reliability of our watches under the toughest
climatic conditions. Equipped with Temperature Resistance Technology,
the chronograph passed the acid test at the Yukon Quest, the world’s most
demanding dogsled race. The 203 ARCTIC passed its Arctic endurance test
on the wrist of extreme diver Mario M. Weidner, withstanding all dives in the
freezing cold waters of the Arctic Ocean above 81 degrees latitude. Both
watches were worn on top of protective clothing. The real test was in the
extreme temperature fluctuations between water and land – a test that the
303 CRYSTAL and the 203 ARCTIC passed with flying colours.
Image: All of the technical details of our watches are documented by tests.This system of
assessment has been specially designed for certification of the pressure resistance of our
diving watches by DNV GL (formerly Germanischer Lloyd, Hamburg), the world’s largest
classification society for maritime safety.

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Workshop modifications
From the robust case and the polished crystal to the exquisitely decorated
movement, we make sure that each and every detail in our watches is fit
for purpose. In addition to our technology, the heart of any SINN watch is
the fascinating mechanical movement. That is why we rely only on selected
renowned manufacturers.
“SZ movements” is the name given to our movement modifications. The result
is high-quality calibres characterised by impressive technical features. An
example of this is the SZ04 with regulateur for the 6100 REGULATEUR series. Or
the SZ02 calibre for the U1000 diving chronograph. The 60-second scale of the
stopwatch minute counter is much simpler and more intuitive to read than the
30-second scale commonly found in other watches.
A special feature is the high-quality hand-wound calibre UWD 33.1 made by
Uhren-Werke-Dresden. This is equipped with a spring barrel supported on one
side, also referred as flying spring barrel. In accordance with the functional
principle of a swan-neck regulator, the regulator system enables zero-play
precision adjustment and beat setting of the watch. Another sophisticated
technical feature are the six eccentric weights on the balance wheel for
precisely balancing the balance system.

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MODEL SERIES 104
Image: 104 St Sa A
Be it with indices or Arabic numerals, the series 104 are classic pilot watches
designed in traditional SINN style. We are now offering an attractive new
model in this popular series, featuring a brilliant white dial with indices.
Clearly structured, these watches provide optimum readability of the time,
date and day of the week. The pilot’s bezel with minute ratcheting can be
rotated on both sides and is securely attached to the case. Its main marking
is a luminous triangle. The instrument watch features a polished stainless-steel
case and sapphire crystal glass, which is also used for the transparent back.
This transparent back allows the delicate work of the mechanical movement
to be admired in all its intricacy. Series 104 is resistant to low pressure and can
withstand pressures of up to 20 bar.

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104 St Sa A
104 St Sa I
104 St Sa I W
Winding the watch (crown position 1)
The crown is screwable (crown position 0). To loosen the crown, turn it counter-
clockwise (crown position 1). The movement is wound by turning the crown
clockwise. About 40 winds of the crown are generally enough to ensure
reliable functionality. Under normal circumstances, simply wearing the watch
every day should suffice to keep the self-winding mechanism wound. The
power reserve allows you to take off your watch overnight without having to
re-wind it.
INSTRUCTIONS FOR USE
104 St Sa A/104 St Sa I/104 St Sa I W
Hour hand Second hand
Minute hand
Minute hand
Second hand Hour hand
Date and day of
the week display
(D/GB) Date and day
of the week
display (D/GB)
Pilot’s bezel Pilot’s bezel
Crown position
0 1 2 3
Crown position
0 1 2 3

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Time adjustment (crown position 3)
In crown position 3, the motion is paused. This helps you to set the watch
precisely. Please make sure the date changes at midnight and not at
midday. Just move the hands forward until the date changes. Afterwards you
attempt to set the time. We recommend moving the hands past the desired
minute marker and then adjusting it backwards. The movement restarts as
soon as the crown is no longer in position 3.
Quickset date and day of the week adjustment (crown position 2)
Do not use this function between 9 p.m. and 3 a.m. Crown position 2 can
be used to change the date and day of the week quickly and simply. To set
the date, pull the crown to the second position and turn it clockwise until the
current date appears in the display window. To set the day of the week, turn
the crown counter-clockwise until the desired day of the week is indicated.
You can choose to display the day of the week in German or English. The day
of the week is then automatically displayed in the selected language each
day. Please do not use this function between 9 p.m. and 3 a.m. Between
these times, the gear wheels used for changing the date are engaged, and
the movement could be damaged.
Please take care to fasten the crown after making adjustments.

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104 St Sa A 104 St Sa I
104 St Sa I W
The pilot’s bezel can be moved manually in both directions. The triangle
glows in the dark. It can be used in a number of ways, including to measure
important lengths of time. For example, you can set the marking to the
beginning of the time span to be measured, or you can use it to indicate the
end of a given span of time.
USING THE PILOT’S BEZEL TO MEASURE TIME

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ASSEMBLING AND ADJUSTING OF STRAPS
If you are not sure how to assemble, shorten or lengthen the watch straps,
please contact your specialist SINN retailer directly or one of our watchmakers
in customer service in Frankfurt am Main. We would also be happy to help you
over the telephone.
Adjusting the length of the solid bracelet
Determine the relative lengths of the two sides before adjusting the length of
the bracelet. To ensure maximum comfort, both sides of the bracelet should
contain the same number of links. If this is not possible, the top bracelet strap
(above the 12 on the clock) should be longer.
It is not necessary to detach the solid bracelet from the watch or the clasp.
1. Loosen the screws on the side of the bracelet link which is to be removed
or added.
2. Remove the superfluous bracelet link or insert a new one.
3. Before screwing tight, add a small drop (no more!) of thread-locker
(AN 302-42 medium-tight) to the thread of the bracelet screw.

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Fig. 1
A
B
C
Assembling the textile strap
1. Place your watch on a soft cloth with the dial facing down.
2. Fold over the shorter side of the textile strap with the two metal loops
pointing to the left. Then bring the longer side of the textile strap through the
spring bars on the left and right, as illustrated in figure 1 (steps A to C).

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Fig. 2
3. Fold over the shorter side of the textile strap to the right over the case back
and bring the longer side through the two metal loops. Tighten the textile
strap carefully (figure 2).

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Image: 104 St Sa I W