Sinn 856 B-Uhr Limited Edition Tegimented on Bracelet

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• Verified Owner Reviews (9 reviews)
SKU: SI-384

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: Bracelet
• Warranty service: RGM or Sinn

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WatchBuys Direct Price: $2,490.00
Availability:  In Stock - Ships Immediately

Condition:  This Sinn watch is brand new and unworn

Authorized:  WatchBuys is Sinn's official importer and distributor
This watch ships free to US, Canada, Puerto Rico, Guam and APO/FPO/DPO locations from NC with select shipping methods

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

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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 fully Tegimented stainless steel bracelet.

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)



Verified Owner Comments: I love love love this watch. For context: Initially I wanted the 556a, but then decided nope, I don't like the small size or satinized finish. I'd rather fork out more cash for better tech and larger case. So I had my eyes on regular 856. But after talking to Rob(owner) on a call about supply chain issues I decided on the 856 B-Uhr. It's soooo perfect. WAY better than I expected. You have to watch the 1 or 2 YouTube videos or shorts to see what it will really look like. Although those people have small wrists so on me it looks a lot different. Of course in the flesh on your actual wrist it may vary. I have a 7.5 wrist. 40mm looks good. But the tech. The dehumidifying copper sulfate capsule, inert gas, antimagnetic properties, and BEST OF ALL THE PROPRIETARY TEGIMENTED STEEL CASE AND BRACELET. PLUS THE UNIQUE DIAL DESIGN. The dial has weak lume but who cares it's a Pilot watch. Ivory indices and dial design are extremely unique and military-style. It's a very manly watch. Matte back... - more details

Beautiful watch

"Beautiful watch"

Verified Owner Comments: This is a beautiful, high quality watch. The tegimented features on it have been great so far. I’ve worn this thing everywhere - from the office to the ocean - and it has yet to look used at all.

I love that it’s a limited edition, the only limited 856 I believe - and the story it tells (the history of the Fliegers and the B-Uhrs) makes this watch a great interpretation of that tradition.

This was my first Sinn. I’d like to say it won’t be my last but with how satisfied I am with this, it just may be.

Sinn B-Uhr

"Sinn B-Uhr"

Verified Owner Comments: Wonderful experience for a first time high end watch buyer. This was a gift for my husband, the customer service was great and helpful answering all of my questions and concerns with purchasing as a gift. Shipping was fast.

My husband loves the watch, we couldn’t be happier.

A solid watch

"A solid watch"

Verified Owner Comments: I purchased this watch because I liked the Beobachtungsuhr dial. And indeed, the dial is not only attractive, but very legible and easy to read in the dark. I also like the flat sapphire crystal which seems to have very good antireflective coating. The case and bracelet are very rugged, and this has become the watch I wear when hiking, hunting, exercising, etc, as I think it will stand up to almost anything.

I also like the antimagnetic design, as I frequently work around high magnetic fields. My only complaint would be the clasp on the bracelet, which is rather difficult to open. I do like the water resistance of the bracelet as opposed to the leather, but maybe I'll eventually try a rubber strap on it.

Aviation homage

"Aviation homage"

Verified Owner Comments: Excellent piece and proportions. The tegimented steel and matte dial allow for a no-nonsense timepiece.

The winding action is smooth and the fitment with micro-adjustments is comfortable.

Unique and well made Sinn

"Unique and well made Sinn"

Verified Owner Comments: I had been looking for a type-b dial and the 856 B-Uhr really fit the bill.

I love the Tegimented bracelet and it looks and feels great on a leather strap. The watch runs great and is extremely well built.

Sinn's Perfect Watch!

"Sinn's Perfect Watch!"

Verified Owner Comments: First, let me take my hat off to Watchbuys! Great, great customer service!!!

My latest purchase was the Sinn 856 B Uhr. I am 6' 3 and I am an avid runner. This watch is perfect in size and weight, easy to read, and has many of Sinn's technologies Incorporated. I love Sinn's choice to use the white and parchment colors (looks like a light shade of orange to me.) This really makes the watch stand out! I have had many compliments!

856 B-Uhr on Tegimented Bracelet

"856 B-Uhr on Tegimented Bracelet"

Verified Owner Comments: Love this classic design, esp. with the Ivory contrasts. Looks great with Tegimented bracelet. Easily converts to a strap for dress, formal wear. The 856 case construction is outstanding & perfect size at 40mm.

Sinn 856 B Uhr on Tegimented Bracelet

"Sinn 856 B Uhr on Tegimented Bracelet"

Verified Owner Comments: I was looking for another Sinn to alternate with my U1 on rubber strap. The 856 B Uhr is perfect as a rugged, hard-wearing, every day watch. The fully Tegimented case and bracelet ensure good looks for years to come and truly are scratch resistant. The Tegimented steel has a warm tone and great looking matte finish that compliments the ivory lume. The dial is perfect and gives a welcomed unconventional look to an everyday watch. I also ordered the tan leather bund strap to switch out with the bracelet. Being partial to leather or nato straps on all my watches, Sinn makes such a high quality bracelet, I find myself wearing the bracelet more than the leather. It's just that comfortable. The antimagnetic and AR technology was also a must have for me. This 856 has all the the most practical tech Sinn offers. My only gripe is the lume only glows for a few minutes in the dark before fading beyond legibility. My U1 glows for hours without requiring a recharge. The 856 B Uhr is also the pe... - more details