Sinn 857 UTC VFR Tegimented on Strap

Watch Reviews - Scroll Down to Product Tabs

• Verified Owner Reviews (7 reviews)
SKU: SI-399

Watch Brand: Sinn

Sinn North America

DIN 8330 certified professional pilot's watch
• 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 steel
• Dial color: Black
• Front crystal: Sapphire
• DIN 8330 certified: Yes
• Tegimented: Fully
• Inert gas: Filled
• Copper sulphate: Capsule
• Movement: Automatic mechanical
• Manufacturer's limited warranty: 3 years
• Strap or bracelet: Strap
• Warranty service: RGM or Sinn

WatchPoint Rewards Logo
Learn how to earn 5120 WatchPoint Rewards

WatchBuys Direct Price: $2,560.00
Availability: Temporarily Sold Out

Sinn 857 UTC VFR Tegimented on Strap
Sinn 857 UTC VFR Tegimented on Strap

(Click Image to Enlarge)
Product Details

Sinn DIN 8330 Tegimented Dual Time Zone UTC

This watch is one of the world's first watches to meet the DIN 8330 standards for professional pilot's watches.

The Sinn 857 UTC VFR is one of the first pilot watches in the world to be distinguished by precisely defined functional and technical features to withstand vibrations, shock loads, centrifugal force loads, temperature changes and magnetic fields occurring in flight.

These tests ensure that the 857 UTC VFR can act as an all-round replacement for the on-board timekeeping instruments available to pilots under visual flight rules (VFR).

This watch is also capable of tracking two times zones through the use of a second hour hand on a 24 hour scale for indication of AM and PM. 

The range of technologies also includes Sinn's Dry Hold technology for greater functional reliability and freedom from fogging and overall functional reliability at temperatures between 45 C and + 80 C.

Take a look at these specs, and we think you will agree this watch sets a new standard for pilot's watches:

  • Tested and certified to DIN 8330
  • UTC function to track two time zones
  • Case made of Tegimented steel
  • Dehumidifying technology enhances functional reliability and freedom from fogging
  • Functionally reliable from 45 C up to + 80 C
  • Captive pilot's bezel with minute ratcheting
  • Sapphire crystal glass
  • Water resistant to 200 meters
  • Low pressure resistant

Dial is matte black with Arabic numerals and dual color luminous markers and hands.

This watch is equipped with a Sinn double stitched calf leather strap with tang 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.

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 (7 reviews)

Excellent Tool Watch

"Excellent Tool Watch"

Verified Owner Comments: Best Sinn I've owned! Tough, comfortable, and legible in all conditions. I was a bit worried at first: it arrived keeping mediocre time (~-17s/d) and the strap felt stiff and clunky, but it settled into great timekeeping (~-2s/d) and the strap broke in to perfect comfort in about a week of daily wear. I like the useful timing bezel (though would have preferred a countdown one, for what I actually use it for as well as novelty), the all-terrain water and temperature resistances, and the simple strap changes with the drilled lugs. The hardened case with its grayish, almost titanium-like luster is distinctive, as is the anti-moisture capsule peeking out of the case side. It definitely stands out in my collection. I LOVE the dial: the UTC and date information are readily available, but not distracting from the time. The lume is fine and functional, if nothing exceptional (you won't mistake it for a Seiko diver in the dark). Note that, of the numerals, only the 12 glows, unlike with the... - more details



Verified Owner Comments: As a professional pilot, I take the equipment I use for my job very seriously. This watch is the perfect, working pilots, watch. Functional and no nonsense. Extremely legible even in low light conditions.

All the technology integrated into this timepiece only enhances its functionality and durability. So far, it’s accuracy is + 1-2 seconds per day. Excellent piece of gear.

What can I say

"What can I say"

Verified Owner Comments: I think the Sinn is a beautiful watch and it is constructed beautifully.

This was my second purchase from watch buys which was similar to my first experience, fantastic. Highly recommend these guys and I am not one to write reviews very often

Sinn 857 UTC VFR

"Sinn 857 UTC VFR"

Verified Owner Comments: Extremely legible, high-contrast hour/minute markers, date and hands on a very matte dial. Excellent finishing on case, dial, crown, hands, date wheel, 2AR crystal. Reflections are minimal due to the matte dial, and 2AR crystal. +1s/day.

Very satisfied.

Sinn 857

"Sinn 857"

Verified Owner Comments: Shipping was prompt, customer service called prior to confirm information. Very helpful! Watch ticks like it should. It's even better looking in person. I could not be happier!

If you are on the fence, pull the trigger, you will be glad you did.

great modern pilot watch

"great modern pilot watch"

Verified Owner Comments: So I had a Damasko which I feel is the distant relative to Sinn. But in the end I just didn't bond with the Damasko and Sinn was calling my name. I have always been attracted to Sinn and other German watches as I also own two Stowa watches. The DIN 8330 watches were calling my name. I cross shopped this with the DIN 8330 Stowa Pilot but the looks and options of the Sinn just won me over. I do love the dial layout, the UTC function, the lume and the tactile feel of the rotating bezel. My only nit picks are the pricing on Sinn watches seem a little high to me compared to comparable brands but if you can swing it, its worth it. I'm not a huge fan of the strap that comes with the watch as I feel its too thick for me most likely issue with the shape of my wrist and I also wish I could obtain a 22mm tegimented buckle from Sinn for my aftermarket canvas strap but that doesn't appear to be available. All and all this is one of my new favorite watches in my collection and don't think I will b... - more details

Sinn 857 UTC VFR

"Sinn 857 UTC VFR"

Verified Owner Comments: German precision tool was what came immediately to mind when handling this watch for the first time. Fit and finish are absolutely perfect and it looks incredible without any unnecessary design touches.

This will be taking over the number one spot in the daily wear rotation.