Sinn 856 B-Uhr Limited Edition Tegimented on Strap

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• Verified Owner Reviews (9 reviews)
SKU: SI-383

Watch Brand: Sinn

Sinn North America

Limited Edition 856 Pieces

German minute timing pilot’s watch
• Watch diameter (mm): 40.0
• Watch height (mm): 11.0
• Lug width (mm): 20
• Lug to lug (mm): 47.5
• Weight - head only (grams): 70
• Water resistance: 200 meters
• Case back: Solid
• Case metal: Tegimented hardened steel
• Dial color: Black
• Front crystal: Sapphire
• Tegimented: Fully
• Inert gas: Filled
• Copper sulphate: Capsule
• Antimagnetic: 80,000 A/m
• Movement: Automatic mechanical
• Manufacturer's limited warranty: 3 years
• Strap or bracelet: Strap
• Warranty service: RGM or Sinn

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WatchBuys Direct Price: $1,990.00
Availability: Temporarily Sold Out

Sinn 856 B-Uhr Limited Edition Tegimented on Strap
Sinn 856 B-Uhr Limited Edition Tegimented on Strap

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Product Details

A B-Uhr (Beobachtungs-uhren) watch is a navigational timepiece, with the earliest designs dating back to deck watches produced in the 18th century.

The overriding characteristic is extreme legibility, with an inner ring for the hours and large minute markers and numerals.  The pointer or triangle at 12 is another feature found in almost all B-Uhr designs.

Sinn has complemented the historic design in the 856 B-Uhr Limited Edition by combining the traditional look of a B-Uhr watch with the size and features that meet today's standards.

As is customary with traditional B-Uhr watches, the hour hand of the 856 B-Uhr has been reduced and points to a separate, inner hour circle, while the dominant minute hand indicates the minutes around the circumference of the dial.

The numerals, indices, triangular main marker and the minute hand are highlighted by ivory-colored SuperLuminova. The ordering of hour hand and minute hand on the black dial follows historical specifications: during operations, minutes were the more important unit of time, and it was important to be able to read them quickly and accurately.

This watch is fully Tegimented, and has a hardness of 1,200 Vickers which is up to five times harder than standard steel. 

Next, this case offers magnetic field protection of up to 80,000 A/m, among the highest for any mechanical watch. The case back is nickel free offering protection to those with allergic reactions to this metal.

The case features a copper sulphate capsule which reacts with moisture to diffuse and absorb humidity in the watch.

This watch is fitted with a Sinn brown leather strap with tang buckle.  A matching brown leather Bund pad is also included.

This watch is water resistant to 200 meters.

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.

DIN 8330 / 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 existed for example for diver's watches.

The new "Technical Standard for Pilot's Watches" (TESTAF) and DIN 8330 were originally developed by the Aachen University of Applied Sciences and establishes the suitability for professional use as a pilot's watch.

  • View Sinn watches in the DIN 8330 / TESTAF Series


Watch Reviews From Verified WatchBuys Buyers
100% • Verified Owner Reviews100% • Verified Owner Reviews (9 reviews)

Lovely, unique, tool watch

"Lovely, unique, tool watch"

Verified Owner Comments: Always wanted a Sinn but never got around to finding the one I want (there's so many choices in the Sinn line..). Decided on the B-Uhr because of it's retro face but modern case and crystal, and the leather strap.

First off the bundt pad feels great, and makes the watch tighter on the wrist (which is good since the leather strap on it's own is quite longer than typical). I noticed a few commentators had this mixed up. If you remove the back pad the watch is looser not tighter. Anyway i switched it out to the canvas tan Sinn strap a week later for aesthetic reasons, looks gorgeous. It's kept perfect time and everyone seems to do a double take when seeing it. Very comfortable size for me and overall a beautiful time piece. I've caught the Sinn bug!

Beautifully Built Watch

"Beautifully Built Watch"

Verified Owner Comments: This is my first Sinn and I was very impressed with the overall build quality. The dial is very interesting as well with the short skeletonized hour hand pointing at the inner hour ring and the longer minute hand with lume matching the minute indices.

I do agree with the other reviewer that mentioned that without the bund pad in place, the strap is on the larger side. I have a 7 inch wrist and the band is snug only in the last hole. Overall, I am very happy with the watch and my purchase in general

Sinn B-Uhr

"Sinn B-Uhr"

Verified Owner Comments: I love this watch.

I have proudly worn Tag, Glycine, and Panarai watches. This is by far my most endearing. This Sinn has kept amazing time and gained only seconds in over two weeks time. I get many compliments and I enjoy wearing it immensely. The lume however is the worst I have ever seen. Very dull and loss is quick and immediate. Additionally there is zero seven-o-clock lume. Disappointing. Everything else about this watch is fantastic.

Primo watch with a first class purchase experience

"Primo watch with a first class purchase experience"

Verified Owner Comments: This was my second Sinn watch purchase. But my first purchase from WatchBuys. So no surprise on the watch itself. Typical Sinn quality. I love the Sinn 856 B-Uhr. The leather bund strap is fun to have. This is a nice limited edition watch for sure. What I was not expecting was the level of care and service from an online retailer. The first thing that seemed out of the ordinary was the timely super detailed email communications from WatchBuys. Updating me every step of the way. That was nice. But what really caught me off guard was the phone call from WatchBuys the day my watch was to ship asking me to call back to verify my shipping address. When I called back to confirm my shipping address I asked about a Sinn bracelet that was out of stock. Kevin with WatchBuys said he would notify me when it was back in stock. Sure enough he did, with a personal email to let me know. Who does that these days? Very few online retailers do this. WatchBuys does. I can’t think of a better watch buy... - more details

Perfect Everyday Sinn

"Perfect Everyday Sinn"

Verified Owner Comments: This is my first Sinn in the n56 family. What I like about it is the overall thin aspect of the watch. Most all of my other Sinn’s are a bit thicker. The watch face is easily readable at a glance and the coloration is rather retro tan. A keeper as far as I am concerned and a "Limited” one at that.

The Tegemented treatment as well as the AR tech just makes it a true Sinn. My perfect everyday Sinn for sure.

856 B-Uhr - My Kind of Homage Watch!!!

"856 B-Uhr - My Kind of Homage Watch!!!"

Verified Owner Comments: When I was first introduced to Sinn watches, I was drawn to the 856 and the 857. For my work, either would have been perfect, especially in the UTC configurations. Though my first Sinn ended up being the 857 UTC TESTAF LH Cargo, I couldn’t help continuing to look at the 856 B-Uhr. As a professional pilot, I often need to reference UTC time for filing flight plans and insuring that Void Times (always given in UTC,) are complied with. I also enjoy and often used the elapsed time bezel. After living with my 857 for a couple of months, I became more acutely aware of the details of the watch that made it so extremely useful and comprehensible for me. First and foremost, when Sinn indexes a dial, it does it in such a way that the wearer of the watch can decipher information immediately. The combination of bold index markers, extremely readable numerals, and clear, concise hands make the 857 and 856 Sinn watches a joy to use. Compared to any other watches I have owned from any other premi... - more details

856 B-Uhr - Perfect Tool Watch

"856 B-Uhr - Perfect Tool Watch"

Verified Owner Comments: The 856 B-Uhr is a beautiful watch that combines the charm of a B-Type Flieger with state of the art watchmaking technology. It's a true everyday tool watch. This is my first Sinn and it's easily the most legible watch I own. It's 200m water resistant, anti-magnetic, equipped with copper sulfate capsules to draw out moisture within the case, and it's even filled with Argon gas to prevent moisture from getting in in the first place. Best of all the case is made from Tegimented hardened steel, which makes it pretty darn resistant to everyday dings and scratches. I've banged mine around while playing golf, landscaping, even woodworking and it still looks brand new and runs at just +4.5 sec/day. I do agree with the other reviewer that the bund pad is unnecessary and makes the strap too long. That being said, the strap itself is high quality and extra holes can be added in seconds with a leather punch. Also, It looks fantastic on Nato, so I had the strap swapped out quickly anyway. Overa... - more details

Perfect Everyday Wear

"Perfect Everyday Wear"

Verified Owner Comments: I was looking for an everyday automatic tool watch that was 36-40 mm, under 12mm, easy to read, anti-magnetic, shock resistant, and scratch resistant. Easy combo right? This was honestly one of the only ones I could find that was less than $3000. I found myself mostly cross shopping this, the rolex explorer, the tudor ranger/blackbay, and the Sinn 856 UTC.

At the end of the day Sinn provides a much better value than the tudor/rolex lines, and I much preferred the simple aesthetics of the B-Uhr vs the UTC. My only complaint is that the limited edition strap, while nice, is too long, so I purchased a black nato nylon strap to complete the package. I love it.

856-B-Uhr on strap

"856-B-Uhr on strap"

Verified Owner Comments: Beautiful Watch. Bund pad is unnecessary which makes strap too long for my 7 wrist. Other than that small issue, this is a Beautiful Watch.