Sinn 656 Series User manual

MODEL SERIES 656/657

6 – 9
10 –11
12 –13
14 –19
20 – 21
22 – 23
24 – 25
CONTENTS
SINN SPEZIALUHREN ZU FRANKFURT AM MAIN
MODEL SERIES 656
MODEL SERIES 657
INSTRUCTIONS FOR USE 656/657
TECHNICAL DETAILS 656
TECHNICAL DETAILS 657
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 magnetic field protection and
scratch-resistance. Some of our
customers, such as divers, pilots or
the German GSG 9 special police
unit, need to rely on their watch in
their respective careers because
their life depends on it.
They all swear by the high
performance, resilience and
durability, as well as the quality
and precision of these timepieces.
The water and pressure-resistance

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data are reviewed and authenticated at regular intervals, as is the case
with our diving watches, for instance. We, for our part, give absolute priority
to functionality, which ultimately determines the design. Our watches only
feature technological attributes that really make sense. All the while, we
remain committed to our guiding principle 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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It was back in 1961 that the 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 control. 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 insiders' 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.
SINN SPEZIALUHREN ZU FRANKFURT AM MAIN

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All developments thoroughly tested
Take, for instance, the absolutely condensation-
free and anti-reflective diving watch made of
stainless steel – designed with HYDRO Technology.
Other examples include a chronometer
chronograph fashioned from a 22-carat gold
alloy, which is as hard as stainless steel, and a
chronometer whose resistance to magnetic
interference is 20 times greater than normal. Or
those watches filled with protective gas and
featuring an integrated dehumidifying capsule to
counteract moisture infiltration and the ageing of
the watch movement. This list would not be
complete without mentioning the development of
so-called Einsatzzeitmesser (EZM) watches for
special police units and border guards, and the
Temperature Resistance Technology that allows
mechanical watches to perform at temperatures
ranging from – 45 °C to + 80 °C. The 303 KRISTALL
model passed the fire and ice test during the 1998
Yukon Quest sledge dog race that crosses the icy
wilderness of Canada and Alaska, where
temperatures are known to plunge to – 40 °C. The
watch was strapped to the arm of some of the
participants on top of their protective clothing.
This was followed in 1999 by the 203 ARKTIS model.
This diving chronograph passed its field test in the
North Polar Sea with flying colours.

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Innovations and authentications
One of our most important inventions is the oil-free DIAPAL Technology,
based on low-friction materials for the key functional parts of the watch,
enabling them to run without lubrication. This technology was first employed
in our jubilee watch, the palladium alloy/white gold Frankfurt Financial
District Watch. TEGIMENT Technology, with which SINN achieves a virtually
scratch resistance surface for its watches, represents another milestone.
Other innovations include diving watches made from original submarine
steel, as used in the construction of the outer shell of German class 212
submarines. Germanischer Lloyd, the world's biggest classification society
providing marine safety services, has been testing the aspects of water and
pressure resistance since 2005. Moreover, an official authentication process
conducted by Germanischer Lloyd in 2006, SINN diving watches as diving
gear for the very first time in the watch making sector and tested them
in keeping with European diving equipment standards. The result: these
timepieces passed the temperature resistance and functionality tests with a
sensational success. All test results are authenticated with signature and seal.

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Ongoing advancement in technology and quality
Our top priority is always to develop watches which 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 first has to 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.
Workshop modifications and hand-engraving
From the robust case and the polished crystal
through to elaborate refinements: we make sure
that each and every detail in our watches is fit
for purpose. The same applies to our workshop
modifications. Only the perfect interaction of all
components and technologies ensures that our
watches can meets all its design specifications
in full. For example: the SZ02 calibre of our U1000
diving chronograph. The 60 minute scale of
the stop-minute counter is much simpler and
more intuitive to read than the 30 minute scale
commonly found in other watches. The hand
engraving represents a highly personal form
of refinement. If required, our specially trained
master engraver can etch a name, initials,
monograms or symbols onto the rotor, movement
bridge and case back.

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