Sinn 857 UTC Black Fully Tegimented on H-Link Bracelet

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• Verified Watch Owner Reviews (12 reviews)
SKU: SI-225

Watch Brand: Sinn

Sinn North America

Automatic winding dual time zone with Tegimented case and bracelet
• Watch diameter (mm): 43.0
• Watch height (mm): 12.0
• Lug width (mm): 22
• Lug to lug (mm): 49
• Weight - head only (grams): 90
• Water resistance: 200 meters
• Case back: Solid
• Case finish: Matte
• Case metal: Tegimented hardened DLC steel
• Dial color: Black
• Front crystal: Sapphire
• Tegimented: Fully
• Bracelet Tegimented: Fully
• Inert gas: Filled
• Calibre: SW330-1
• Copper sulphate: Capsule
• Antimagnetic: 80,000 A/m
• Movement: Automatic mechanical
• Strap or bracelet: Bracelet
• Manufacturer's limited warranty: 3 years
• Warranty service: RGM or Sinn

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WatchBuys Direct Price: $3,390.00
Availability: Temporarily Sold Out

Sinn 857 UTC Black Tegimented on Bracelet
Sinn 857 UTC Black Fully Tegimented on H-Link Bracelet

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Product Details

Sinn TegimentTo create this watch, Sinn built upon the extremely popular design of the Sinn 857 UTC and added a black DLC Tegimented case and bracelet.

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.

The case back is nickel free, perfect for those with allergic reactions to case metals. Other features include protection from magnetic fields of up to 80,000 A/m, sapphire crystal with anti-reflective coating on both sides.

Another Sinn engineering feat is the creation of a bezel that is secured by screws.  The inlaid aluminum ring featuring numerals and markers is anodized black for optimal legibility, while the triangle reference marker at 12 is applied with special paint for visibility.

The case features Sinn's Dehumidifcation Technology, which includes the use of inert gas in conjunction with a copper sulphate capsule which reacts with moisture to diffuse and absorb humidity in the watch. This capsule may be viewed through a porthole in the left lug, and over time will turn a deep blue as humidity is absorbed. This technology not only provides a more stable environment for the movement, but also helps to prevent fogging of the crystal when going from hot to cold environments or from humid to non-humid conditions (such air conditioned buildings).
Sinn 857 Case Side
This watch has a second time zone displayed by a skeleton yellow tipped hour hand. The second time zone can be set directly through the second position of the crown and uses a 24 hour indication to differentiate AM and PM.

Dial is matte black with Arabic numerals and offset date display at 4. The design and layout of this watch make it extremely easy to read in virtually all light conditions.

Sapphire crystal with luminous hands, hour markers and the 12. Watch is water resistant to 20 ATM. Watch is fitted with a Tegimented DLC steel bracelet with hex screws and solid end links.

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 (12 reviews)

Trusted Service with WatchBuys

"Trusted Service with WatchBuys"

Verified Watch Owner Comments: WatchBuys' service was very good with prompt responses to my pre-purchase questions. When I placed my oder they worked with me to arrange my desired delivery date.

The watch arrived in brand new condition with all of the books and tools in place. The Sinn 857 UTC has nice heavy weight and the construction is very tight. Adjusting the bracelet was easy and it feels smooth on the wrist. Very happy with the watch so far.

German Quality

"German Quality"

Verified Watch Owner Comments: Very happy with my Sinn 857. For me this is a perfect tool watch. Everything works exactly how you want it too. It's also kept great time. I have it on a rubber strap right now, but the bracelet is excellent and was simple to adjust, although I recommend being very very gentle with the screws, unfortunately I broke one when removing links.

My experience with watchbuys was excellent. I appreciated their customer service and the watch was shipped promptly. Thanks watchbuys!

Pure Black Perfection !!

"Pure Black Perfection !!"

Verified Watch Owner Comments: I really love this watch! It would be my first all black model and it's turned into my favorite so far. I looked at Bell Ross in the past, but this one won me over with a more updated look and feel. I'm wearing this more than my Rolex Sub, Omega Seamaster 300, Omega Grey Side and my Tag AquaRacer now.

I love the big bold numbers that are easy to read and the band fits well. Being able to adjust it at home with the tool provided is great! I'm curious to see how the black finish holds up over time, but after a ton of research it appears it will be very durable for years to come.

WatchBuys was very friendly and prompt with sending out my order. Thanks again!

Germany quality at it's best!

"Germany quality at it's best!"

Verified Watch Owner Comments: Germany quality shines through and through here. The tegimented finish and build quality has the watch feeling very solid on the wrist, as you would expect from looking at it (but not heavy). The crystal is super clear, dial design is very clean and easy to read.

Excellent customer service by watchbuys, called me to thank me for the purchase let me know the next steps with shipping. Will definitely order again from WB

I love this watch!

"I love this watch!"

Verified Watch Owner Comments: Absolutely impeccable, I love this watch. So clear, you can tell the time at a glance, it reminds me of the instrument cluster of my VM GTI or any BMW. Accurate, heavy, solid, built like a Panzer dare I say.

Great Watch - Great Service

"Great Watch - Great Service"

Verified Watch Owner Comments: The process to order was easy, got a follow up call to make sure everything was in order. Received the watch the next day as promised. Love the Sinn 857. The bracelet is well made and the finish is very durable. I added a leather strap and it is also a quality piece.

Watchbuys made the process very easy.

An excellent piece of horology

"An excellent piece of horology"

Verified Watch Owner Comments: I have had the watch over a month and wore it every day. its accuracy is unique . perfect to the second!

I am a watch collector and own several high quality watches, and it compares in quality with the upscale products. the black tegiment makes it discrete, which was another reason I chose it. I need accurate time in my business but nobody needs to know the watch 's cost. ordering and delivery were smooth - period.

I am very satisfied with the product.  Tthe old German quality at its best, and with an appropriate price.  Well done!

Great service and watch

"Great service and watch"

Verified Watch Owner Comments: My first Sinn and interaction with WatchBuys. I could not be any happier with both experiences.

The follow up from WatchBuys was spot on (made sure I understood all terms of purchase, etc). And the watch! I am glad I purchased 857 UTC S as my very first Sinn. It is a substantial watch sure to be on my wrist more than in my winder.

More Sinns in the future? Yes, without a doubt!

Great Service, Great Watch!

"Great Service, Great Watch!"

Verified Watch Owner Comments: Received excellent 'live online support', and within minutes I had the watch on order.

I couldn't have asked for better service, prompt shipping, and an awesome watch! I highly recommend WatchBuys.

Great UTC!

"Great UTC!"

Verified Watch Owner Comments: I've had this watch for about two weeks now and it continues to impress me. The quality of the watch is impressive to say the least.

I would put Sinn up there with any major brand luxury watch company any day. gave me great service and a great watch! Thanks!

Awesome UTC

"Awesome UTC"

Verified Watch Owner Comments: I have had my Sinn 857 for 2 years now and I have loved every minute.

I wear it on my right wrist and the clasp has yet to show any scuff marks on it from using a mouse pad.

The overall bang for buck has outshined the Omega Seamaster I once owned.

Great GMT

"Great GMT"

Verified Watch Owner Comments: I just got my Sinn 857 and I love it. There is a lot of watch for the money. I absolutely love the PVD and the fit and finish of the watch as a whole. The clasp is very well made and the band has a great hex screw construction. The saphire cyrstal is nearly invisible and the movement is silky smooth.

I was going to buy a Rolex GMT 2 but I don't think that I would have been ANY happier with my watch. It's my first Sinn and I love it.