Sinn U1 SERIES User manual

MODEL SERIES

6 –11
12 –15
16 –19
20 – 22
23 – 27
28 – 29
30 – 31
32 – 33
CONTENTS
SINN SPEZIALUHREN ZU FRANKFURT AM MAIN
DNV GL CERTIFIES SINN DIVING WATCHES
MODEL SERIES
INSTRUCTIONS FOR USE
ASSEMBLING AND ADJUSTING OF STRAPS
TECHNICAL DETAILS
ADVICE
SERVICE

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DEAR CUSTOMER,
Since the company was founded
in 1961, we have focused on the
creation of high-quality mechanical
watches. Nowadays, watch lovers
associate innovation and patents
with the name of Sinn Spezialuhren.
And it’s not just our diving watches
that stand for high performance,
robustness, and durability, quality
and precision.
These watches do, however,
constitute an outstanding example of
how we repeatedly push the limits of
what can be achieved physically in
development.
We are driven by the question
of which new technologies and
materials can be used to make
diving watches safer and more
suitable for everyday use.

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It is often worth indulging in a little lateral thinking to see what is going on
in other industrial sectors or fields of science. It is therefore no coincidence
that the series U1, U2, U200, U212, U1000 and UX are made of high-strength,
seawater-resistant German Submarine Steel. The T1 and T2 models are
another example. All case parts for these mission timers are made of high-
strength titanium. Both submarine steel and high-strength titanium predestine
our diving watches for use in salt water.
Fittingly, we work closely with an independent company specialising in
technical maritime security. The world’s largest classification society DNV GL
(formerly Germanischer Lloyd, Hamburg) checks and certifies the diving-
watch data – including compliance with European diving device standards,
which is unique in the watch industry.
I am delighted that you have decided to buy a SINN diving watch 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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DNV GL CERTIFIES SINN DIVING WATCHES
So what does DNV GL (formerly Germanischer Lloyd) have to do with a
watch manufacturer from Frankfurt am Main? The renowned company tests
and certifies our diving watches according to a variety of criteria. One
test focuses on water resistance and pressure resistance, while a second
test procedure covers something never done before in the watchmaking
industry: certification in accordance with the European standards for diving
equipment!
Testing for water resistance and pressure resistance
In each dive, time plays a crucial role in survival on every dive. Diving
watches must therefore be water-resistant, reliable and durable, and
guarantee perfect readability in all lighting and water conditions. The
information we provide about our diving watches is thus not merely captured
in words, but proven in practice as well. Since 2005, DNV GL has been
testing our diving watches for water resistance and pressure resistance. In
accordance with these certification standards, the EZM 3 and EZM 13 are
pressure-resistant to 50 bar, the T1, U1, U212 and the U1000 series are pressure-
resistant to 100 bar, while the T2, U2 and U200 series are pressure-resistant
to 200 bar and the UX series is actually pressure-resistant to any accessible
diving depth. For this series, DNV GL has confirmed the pressure resistance
of the case to 12,000 m and of the movement to 5,000 m diving depth. The
tests are repeated at regular intervals on all of these watches in order to
document the consistency of the quality.

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Germanischer Lloyd (now
DNV GL) has confirmed
and certified the pressure
resistance.

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A premiere: certification in accordance with European diving device
standards
In a standardised test situation, will a diving watch deliver the same reliable
performance as, say, a breathing apparatus? To answer this question, we were
the first who have watches tested and officially certified according to the
European standards for diving equipment. Also these tests are performed at
regular intervals for all these watches. The testing and certification according
to the European standards EN250 and EN14143 was completely new territory
for both sides. This was the case because the standards for diving equipment
cannot be applied to watches without modification. The experts at DNV GL
thus adapted the standards appropriately and defined two series of tests. In
the first of the two, they put the timepieces in a test cabinet for three hours at
−20 °C, then for three more hours at +50 °C. The timepieces were subsequently
checked for accuracy and functional reliability at both temperatures. In a
second test, the watches had to withstand three hours at −30 °C and 3 hours
at +70 °C with 95 % humidity. The result: Temperature resistance and perfect
functioning were documented and certified for the watches in the U1, U1000
(since 2007), U2, U200 (since 2009), T1, T2, U212 (since 2013), EZM 13 (since 2014)
and EZM 3 series after both tests. The UX series watches were also certified;
however, these were subjected to a modified test involving temperatures
between − 20 °C and +60 °C due to their battery operation and oil filling.

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Germanischer Lloyd (now
DNV GL) has confirmed
and certified the
type-based test of
temperature resistance
and functionality in
accordance with the
European diving device
standards EN250:2000
and EN14143:2003.

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– THE DIVING WATCH
MADE OF GERMAN SUBMARINE STEEL
With the diving watch U1, SINN engineers succeeded in developing a
diving watch in which the quality of material and design gives it superior
resistance to external influences under extreme conditions of use.
In their search for a steel with the desired resistance, the SINN engineers
found what they were looking for at the German submarine manufacturer
ThyssenKrupp Marine Systems.
This special grade of steel is developed by ThyssenKrupp for the outer shells
of the very latest non-nuclear submarines, the 212 class, of the German navy.
Normal case steel has to be rinsed in fresh water after contact with saltwater,
as long-term exposure to saltwater can, in adverse circumstances, lead to
corrosion. Submarine steel, by contrast, is completely resistant to prolonged
contact with saltwater. Also, submarine steel is, on account of its ductility,
extremely resistant to cracking, thereby further increasing its reliability. Its
mechanical strength is more than 1.55 times that of the usual watch case
steel AISI 316L.

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U1 with the captive diver’s bezel
The diver’s bezel can easily be operated while wearing diving gloves. To
protect against unintended adjustments, the diver’s bezel may only be turned
counter-clockwise. Because the bezel plays a vital role in time measurement, it
is an extremely sensitive safety feature. That’s why we have protected our
bezel against loss with a special construction. Our secure attachment differs
significantly from the conventional snap-in mechanism: loss due to unfortunate
impacts is practically impossible, because the captive bezel is securely
fastened to the centre section of the case.
TEGIMENT Technology and the Black Hard Coating
With the aid of TEGIMENT Technology, we achieve greatly increased scratch
resistance through surface hardening. TEGIMENT Technology increases the
level of hardness of the base material, such as submarine steel, many times
over. To achieve this, we do not apply any coating. The material itself is
hardened in the surface area. The hardened surface is far better protected
against scratching than the surface of the base material. The tempering with
the TEGIMENT Technology forms the basis for the application of the Black Hard
Coating – a high quality PVD coating.

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INSTRUCTIONS FOR USE
Hour hand
Diver‘s Bezel
Minute hand
Second hand
Date display
Crown position
0 1 2 3