SINN WATCH TECHNOLOGIES
Sinn watches feature a
number of cutting edge technologies, many of which are unique to Sinn. Among the
more popular features are:
Tegimented Hardened Cases
Many Sinn watches are fitted with Tegimented cases produced in-house by Sinn's
case making affiliated company in Glashutte, Germany.
Standard steel used by most watch companies has a hardness of between 200 and
240 HV (Hardness Vickers is a common scale used to measure material hardness).
The Tegiment layer has a hardness of 1,200 Vickers which is five times harder
than standard steel (and on some Sinn models even higher - up to nine times
harder than standard steel).
The Tegiment layer is not a coating consisting of a foreign material, instead
the steel itself that has been hardened using a special engineering process that
creates a hardened barrier. The base material is a type of stainless steel also
used for surgical implants, and the stainless steel resistance to corrosion is
even further improved by the Tegiment hardening process.
The primary advantage to a Tegimented case is extreme resistance to scratches
and other case abrasions.
Please note that certain Sinn watches are fully Tegimented (case, bezel) while
others are Tegimented only on the bezel. Use the links below to view both
A number of Sinn models feature cases filled with inert gas. Sinn has found that
filling the case with gas can help prevent the introduction of moisture and
humidity to the case, as well as provide a more stable environment for the oils
that lubricate the movement.
Another advantage to this technology is that it prevents the dial and crystal
from fogging. The proper care of any mechanical watch movement mandates that
these oils maintain both their viscosity and lubrication properties.
Copper Sulphate Capsules
A number Sinn models use one or more copper sulphate capsules to absorb humidity
trapped inside the case. Over time these capsules will gradually turn dark blue
indicating that humidity has been absorbed.
The primary benefit to these copper sulphate capsules is a more dry and stable
environment for both the movement and the lubricating oils. Together with Sinn's
inert gas treatment these capsules form the basis of Sinn's Dry Hold Technology.
This technology not only provides a more stable environment for the movement,
but also prevents fogging of the crystal when going from hot to cold
environments or from humid to non-humid conditions (such air conditioned
Extreme Antimagnetic Protection
Magnetism can cause dramatic swings in the timekeeping of a mechanical watch
movement. People are often exposed to magnetic fields without even knowing so –
frequent high altitude flying, metal detectors, audio and video equipment,
medical equipment and computer equipment to name a few.
Many Sinn watches offer extreme protection against magnetism up to 80,000 A/m.
Sinn achieves these results using a number of different technologies, including
special case and case back construction, soft iron components in the case and
protective rings surrounding the movement.
DIAPAL Oil Free Escapement
Sinn caused quite a stir when they first released their DIAPAL technology.
Beginning in 1995, Sinn began work to create an oil free escapement. With any
mechanical watch movement, the aging of oil, especially in the escapement can
create long term problems for that movement. Additionally, as movement oil ages,
required service intervals become more frequent.
Sinn's early analysis to this problem provided a quick solution (at least in
theory) - if you don’t use oil, it can’t age. The process began by exchanging
the ruby escapements for diamonds (the word "DIAPAL” derives from the German
name for diamond escapements, "Diamantpaletten”) in order to achieve the desired
effect. The designation stuck, even though today Sinn works with solutions taken
from advanced nanotechnology rather than diamonds.
The result is a movement that proves so reliable that Sinn offers an
unprecedented five year warranty on their DIAPAL watches.
Hydro Oil Filled Technology
Sinn has developed a technology termed "Hydro" in which the entire watch case is
filled with oil. Watches using this technology are based on quartz rather than
mechanical movements, and each movement is a certified chronometer.
By using this type of movement, Sinn is able to fill the watch with oil, which
has the double affect of greatly enhancing the readability of the dial and time
from any angle (including under water), and increasing the water resistance of
the watch even at great depths.
Sinn has created a line of watches featuring cases made from German submarine
steel (the U Series). The steel was procured by Sinn from a steel supplier to
Emden GmbH, one of Germany’s North Sea shipbuilding yards who construct
submarines from the very same steel.
Because of the special steel used from the submarine steel manufacturer, the
case resists the effects of exposure to salt water and salt water environments.
These cases are produced in-house by Sinn's case making affiliated company in
This special steel is also amagnetic which means that is does not have magnetic
properties and cannot itself become magnetized. The watch movement itself is
protected from magnetic fields up to 4,800 A/m.
EZM Mission Timers
Sinn is a partner for manufacturing watches for the German Special Forces,
including SWAT, Customs, FBI, helicopter police, GSG9 and other units.
Beginning with the now highly collectible (and valuable) Sinn EZM 1, Sinn has
grown this collection to some of the most durable and highly functional watches
made and they remain among the most popular in the collection.
TESTAF Certified Pilot's Watches
Lothar Schmidt, Sinn's CEO and owner had long been disturbed by a lack of
technical standards for defining a "pilot's watch". As an engineer, Mr. Schmidt
was fluent in standards for diver's watches, anti-magnetic watches and the many
other technological standards used to manufacture watches.
A widely used reference for standards is DIN, or the Deutsches Institut fr
Normung (German Institute for Standardization). Oddly, he discovered there were
no DIN standards to cover pilot's watches where such standards exist for example
for diver's watches.
The new "Technical Standard for Pilot's Watches" (TESTAF) was developed by the
Aachen University of Applied Sciences and establishes the suitability for
professional use as a pilot's watch.
We've prepared a list of additional popular searches for Sinn watches at