Sinn 717 SZ-01 Chronograph Fully Tegimented on Silicone Strap

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• Verified Watch Owner Reviews (2 reviews)
SKU: SI-571

Watch Brand: Sinn

Sinn North America

Pilot's chronograph based on historic Sinn cockpit clock design
• Watch diameter (mm): 45.0
• Watch height (mm): 15.3
• Lug width (mm): 24
• Weight - head only (grams): 114
• Water resistance: 200 meters
• Case back: Solid
• Case finish: Black DLC steel
• Case metal: Stainless steel
• Dial color: Black
• Front crystal: Sapphire
• Tegimented: Fully
• Inert gas: Filled
• Copper sulphate: Capsule
• Movement: Automatic mechanical
• Strap or bracelet: Strap
• Manufacturer's limited warranty: 3 years
• Warranty service: RGM or Sinn

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WatchBuys Direct Price: $5,910.00
Availability: Temporarily Sold Out

Sinn 717 SZ-01 Chronograph on Rubber Strap
Sinn 717 SZ-01 Chronograph Fully Tegimented on Silicone Strap

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Product Details

The Sinn 7 Series is Back!

Welcome to the Sinn 717 SZ-01 Chronograph with a design and movement function that take the company back to its early days.

Sinn's inspiration for the design of this watch is the historic Sinn NaBo clocks, long manufactured for use in cockpits as a navigational tool.  Even today Sinn continues to produce these clocks which are used in both civilian and military aircraft, as well as specialty cars.

Sinn NaBo 17 ZM Cockpit Clock

The inspiration for the Sinn 717 SZ-01 Chronograph comes from a significant time in Sinn's history- the 1960s and 1970s when the brand was just starting to become known for its pilot's watches and cockpit clocks.

Originally designed for the German Air Force (Luftwaffe) Tornado Program in the late 1970s, the NaBo 17 ZM was a cockpit clock featuring a central minute counter.

These types of cockpit clocks are still used by the military today in Tornado multirole combat aircraft, as well as the F-104 Starfighter, the Breguet Atlantic (a long range maritime patrol aircraft), and in military helicopters such as the Bolkow Bo 105.


A special feature of these clocks was the start and reset buttons at the bottom of the case, as well as the easy-to-read orange hands of the chronograph’s central stopwatch display for seconds and minutes.

The design and functions of the NaBo 17 ZM provided the inspiration for Sinn 717 SZ-01 Chronograph.  Like the clock, this new Sinn watch also features a central stopwatch display for seconds and minutes in the form of large orange hands, which is powered by Sinn's Calibre SZ-01.

The new case design also houses an interior pilot's rotating bezel, which can be easily operated from the outer diameter of the watch.

Sinn's SZ-01 Calibre - A Movement With Unique Features

The special functions of the Sinn Calibre SZ-01 which powers this watch were developed in-house by Sinn.

Sinn spent more than seven years developing this calibre, which has been used in the Sinn EZM 10, Sinn EZM 1.1, and Sinn 140 models.  The design is modeled on the clear and precise legibility of the renowned Lemania 5100 movement, which was utilized in the original Sinn EZM 1.  

The SZ-01 Calibre improves on the functionality of the Lemania 5100 by featuring a chronograph hand that jumps precisely to the next elapsed minute marker rather than continuously moving.

In terms of legibility, Sinn's calibre SZ-01 offers two advantages over typical chronographs: 60 minutes rather than the usual 30 minutes are counted in one sweep of the hand, and the minute stop scale covers the entire diameter of the dial. 

For this watch, Sinn added a constant seconds subdial at 9 as well to allow for timekeeping down to the second outside of the chronograph complication.

The Sinn 717 SZ-01 Chronograph ensures maximum legibility by utilizing a large orange and white arrow for the chronograph minute hand, and an orange sweeping chronograph hand.

Tegimented Steel With Black Hard Coating

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 on this watch has a hardness of 1,500 Vickers which is seven 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 Tegimenting process also acts as an extra protection for the black DLC coating by providing a harder surface for this material. It is interesting to note that Sinn's black DLC watches are hardened to higher standards than most of their non-black Tegimented watches.

Dehumidifying Technology

Mechanical watches require oils to ensure proper operation, and the proper care of any mechanical watch movement mandates that these oils maintain both their viscosity and lubrication properties.

Sinn has found that filling the case with inert 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.  

This inert gas mixture, signified by the Ar symbol on the dial, is used to fill the watch case prior to being sealed.  This will prevent air from entering the watch case, which will promote a dry and stable environment, but also prevents the dial and crystal from fogging.

The second aspect of this technology is a dehumidifying copper sulfate capsule that absorbs unavoidable diffused atmospheric moisture within the watch, thus slowing down the aging process of the movement inside. A second advantage is that any condensation that were to develop does not appear underneath the crystal, even in very humid weather conditions. 

The dehumidifying capsule turns various shades of blue according to its degree of saturation, displayed through a small sapphire crystal window.

Rotating Interior Bezel

Another impressive feat of engineering is the design of the bi-directional interior pilot's bezel. 

The construction of the bezel allows for quick rotation using the outer edge of the watch rather than an additional crown.  The bezel features white numerals on a black ring for optimal legibility, and a white luminous key mark at 12 allows for a quick reading of the time.

Important features of this watch include:

  • Tegimented steel case with DLC black hard coating
  • Sapphire crystal with double sided AR coating
  • Ar-Dehumidifying technology
  • Bi-directional rotating interior pilot's bezel
  • Date display at 3
  • Low pressure resistant
  • Water resistant to 200 meters
  • Sinn SZ-01 calibre

This watch ships on a black Sinn silicone strap with a black Tegimented steel deployant buckle.

Frequently purchased with this item:

Watch specifications are provided by the respective watch manufacturer and/or other sources. Although we use best efforts to provide accurate information, we reserve the right to make corrections when advised of specification changes and/or content errors.

WatchBuys is the official and authorized North American distributor and importer for Sinn watches.

When you purchase your new Sinn watch from WatchBuys, you'll not only get a finely engineered timepiece with excellent value for money, you'll also benefit from the WatchBuys Sinn Advantage.

WatchBuys Advantage #1

Because we are the official and authorized North American Sinn distributor and importer, your name and watch serial number will be automatically registered in our database for a Sinn manufacturer's limited warranty which we pass through.

This means that should your watch require service during the Sinn manufacturer's limited warranty period, service will be provided by Sinn in Germany when you return your watch to them. This Sinn manufacturer's limited warranty is transferable to subsequent owners as allowed by Sinn.

You are responsible for paying the shipping charges to Sinn, and all repairs that Sinn approves under its warranty are at no charge. Sinn will also pay the return shipping charges to the address you specify.

The Sinn manufacturer's limited warranty period is as follows:
  • Watches in the EZM Series: 3 years
  • Watches marked AR containing inert gas: 3 years
  • Watches in the DIAPAL Series: 5 years
  • All other Sinn models: 2 years

WatchBuys Advantage #2

As an added benefit to those who purchase Sinn watches from WatchBuys, you may choose to have your warranty repairs serviced through our US Sinn Authorized Service Center, RGM Watch Service located in Mount Joy, Pennsylvania. This added benefit saves our clients the time and effort of returning their watches to Germany for repair. This service is transferable to subsequent owners who purchase directly from the original registered owner.

Please note that you are responsible for paying shipping and insurance charges for sending your watch to RGM. Once they reach your watch in the service queue they will determine which repairs are covered under Sinn's warranty.

It is important to note that oil-filled quartz Sinn watches must be repaired in Germany (EZM 2, Hydro and UX series). If your watch meets one of these conditions and requires service under warranty, please click here for instructions on returning your watch to Sinn in Germany.

WatchBuys Advantage #3

Your watch will be repaired at no cost to you other than shipping charges to either Sinn or RGM during the warranty period. Sinn watches purchased through the "grey market" (non-authorized sources) may carry no warranty from Sinn. Sinn watches purchased through authorized overseas retailers are governed by the warranty policies of those dealers and/or Sinn, and typically must be sent to either the overseas dealer or Germany for repair.

WatchBuys Advantage #4

You'll be wearing your new Sinn watch soon after your order is placed since we stock Sinn watches and ship free using UPS Air. Plus, since we are located in the United States, there are no "hidden charges" for shipments to US residents as is the case with most overseas dealers. Such charges can add up to 15% to the cost of your new watch, and include credit card surcharges, foreign exchange credit card bank fees, import duties and taxes, and custom's broker charges.

WatchBuys Advantage #5

WatchBuys offers a comprehensive return policy with no restocking fees to US residents. Overseas dealers, including those involved in the grey market, typically don't offer a return policy, and if they do, returning a watch under the policy is both complicated and expensive due to import/export and custom's requirements. Restocking fees are also common and may range up to 15%.

Learn more about our return policies.

WatchBuys Advantage #6

WatchBuys is pleased to accept payments through PayPal, debit and credit cards. We charge no surcharges to use credit or debit cards, and because we are based in the United States your US card is charged in US dollars with no conversion or exchange rate fees.

We also accept payments from PayPal and charge no surcharges.

Please note that to pay by credit card, debit card or PayPal your account and/or card must be issued by US or Canadian financial institution and billed to a confirmed US or Canadian address.

WatchBuys Advantage #7

When you purchase your new Sinn watch from WatchBuys, you'll earn WatchPoint Rewards which accumulate and may be redeemed against future purchases.

Sinn watches feature a number of cutting edge technologies, many of which are unique to Sinn. Please note that not all Sinn watches, including the watch on this page, use all of these Sinn technologies.

Among the more notable Sinn technologies 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 process produces a hardness of at least 1,200 Vickers which is five times harder than standard steel (and on some Sinn models up to nine times harder than standard steel).

The Tegiment process 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 further improved by the Tegiment hardening process.

The primary advantages to a Tegimented case are extreme resistance to scratches and other case abrasions, as well as increased resistance to corrosion.

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 categories.

  • View Sinn watches with fully Tegimented cases.

  • View Sinn watches with Tegimented bezels only.

Dehumidification Technology

A number of Sinn models feature cases filled with inert gas. Sinn has found that filling the case with inert 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.

The proper care of any mechanical watch movement mandates that these oils maintain both their viscosity and lubrication properties.

  • View Sinn watches with dehumidification technology.

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 buildings).

  • View Sinn watches with copper sulphate capsules.

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 being aware - frequent high altitude flying, metal detectors, audio and video equipment, medical equipment and computer equipment can all cause problems with magnetism.

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.

  • View Sinn watches with extreme antimagnetic protection.

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) 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.

  • View Sinn watches featuring the DIAPAL oil free escapement.

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.

By using this type of movement, Sinn is able to fill the watch with oil, which has the joint 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.

  • View Sinn watches with Hydro Oil Filled technology.

Submarine Steel

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 steelmanufacturer, the case resists the effects of exposure to salt waterand salt water environments.

These cases are produced in-house by Sinn's case making affiliated company in Glashutte, Germany.

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.

  • View Sinn watches built from German submarine steel.

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.

  • View Sinn watches in the EZM Series.

Watch Reviews From Verified WatchBuys Buyers
100% • Verified Watch Owner Reviews100% • Verified Watch Owner Reviews (2 reviews)

Perfect design!

"Perfect design!"

Verified Watch Owner Comments: I have been looking a long time for a chronograph I can use in outdoor sports like a field watch and I have always been partial to pilots watches. In my older age, I need reading glasses for any close up work. So I needed a chronograph that wasn't too busy and could be read easily without glasses.

This eliminated most of the choices out there. The Sinn 717, for me, is as near a perfect design as I have found in all of the brands and models I've considered.

The Watchbuys staff were excellent in their customer service and I received the watch exactly when promised.

Sinn 717

"Sinn 717"

Verified Watch Owner Comments: The Sinn 717 is an anti-hero piece. It has a very ‘Escape from New York / LA’ kind of vibe. I’m loving this watch so far. My only quibble is the strap option. Leather can’t get wet and the silicon belongs on a diver, not an pilot watch.

I ultimately put a black nato on it and it now feels perfect. The buying process was absolutely seamless.

I highly recommend the 717. It’s both bold and understated at the same time. Cheers!