Sinn 556 I MOP Black on H-Link Bracelet

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• Verified Watch Owner Reviews (6 reviews)
SKU: SI-584

Watch Brand: Sinn

Sinn North America

Automatic winding mechanical watch with black mother of pearl dial
• Watch diameter (mm): 38.5
• Watch height (mm): 11.0
• Lug width (mm): 20
• Lug to lug (mm): 45.5
• Weight - head only (grams): 65
• Water resistance: 200 meters
• Case back: Transparent
• Case finish: Satinized
• Case metal: Stainless steel
• Dial color: Mother of Pearl
• Front crystal: Sapphire
• Calibre: SW200-1
• Movement: Automatic mechanical
• Strap or bracelet: Bracelet
• Manufacturer's limited warranty: 2 years
• Warranty service: RGM or Sinn

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WatchBuys Direct Price: $1,820.00
Availability: Temporarily Sold Out

Sinn 556 I MOP Black on H-Link Bracelet
Sinn 556 I MOP Black on H-Link Bracelet

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Product Details

This watch is a special edition of the Sinn 556 I Series and features a black mother of pearl dial.  Because mother of pearl is a natural product, each dial is unique, and will radiate different colors as the lighting changes.

The Sinn 556 has become one of our best selling watches of all time and for good reason - it offers a great mix of performance, durability and classic Sinn design.

This version of the Sinn 556 is marked "I" for Indices (the dial has no numerals). 

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.

The difference from these clocks is that Sinn has removed all numerals from this watch and replaced them with indices.  This clean design is a primary reason that so many choose this watch as their daily wear timepiece.

The Sinn 556 I MOP features a case size at 38.5 mm which is satinized. This finish results in a slightly more polished look while at the same time retaining some characteristics of a matte finish.

Notable features of the Sinn 556 I include:
  • Case in 316L surgical stainless steel
  • Each dial is unique in black mother of pearl
  • Sapphire crystals on both sides of the watch
  • Double coated anti-reflective covering
  • Dual seal crown lock to improve water resistance
  • Sapphire crystal back to view the decorated movement
  • Premium Grade (highest) movement

This watch is fitted with a Sinn H-Link steel bracelet with folding clasp.

And what is very unusual for watch in this category is that Sinn has been able to engineer a water resistance of 200 meters rather than the traditional 50 to 100 meters in competing watches.

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 (6 reviews)

Sinn's most beautiful watch.

"Sinn's most beautiful watch."

Verified Watch Owner Comments: I've wanted this for years, every time I see a photo I fall for it again. Sadly there is no easy way to try this on in the US. I traveled to Germany looking for one, but Sinn is a small brand even there.

On my last day I found a small watch shop that carried Sinn. They were closed, but had one of the MOP S in the Window. It just explodes with color in person, I couldn't believe it. I knew I had to get one from Watchbuys when I got home. Watchbuys was great. It arrived super fast. Each dial is unique but they're all great. Your specific dial is unique to you, and you'll keep discovering new details. I know Sinn is a tool watch company.

But this is a professional or dress watch. Most of the time it looks like a standard 556 but with no date. But when the light hits, the dial just erupts in color. Btw, the Rhodium plated hands and indices matches the Rhodium rotor. This watch now has no Ghost date position. A keeper for life.

This watch is great and the experience was smooth.

"This watch is great and the experience was smooth."

Verified Watch Owner Comments: But I wish in the listing they included a picture of the movement. I was hoping to get a watch with a brass/gold tone rotor like other 556 models I see but sadly this one is stainless steel.

(WB Note:  Sinn upgraded all brass rotors to white rhodium, which they previously used only on their most expensive watches).

First of Many to Come

"First of Many to Come"

Verified Watch Owner Comments: This was my first Sinn purchased and by no means am I a watch snob, just a nerd that happens to like watches. I have a smaller wrist, 6.75in, and was a little Leary about how the bracelet was going to fit as I always have trouble with that for some reason but the micro adjustments made it fit perfectly. The case size is perfect for my wrist, even though I can wear up to a 44mm case, this one just sits more comfortably than others. As for the dial, aka the main reason for my purchase, it is gorgeous. When not in direct lighting it produces a subtle brown hue. When in direct lighting of any type it shows off iridescent reds, greens, yellows, and a hint of purple with some orange. The indices go very nice with this dial. The lume is pretty good. Not bad, not super great. Kind of midfield. The accuracies is something that bothered me at first but having had the watch for almost 4 weeks now it has settled into around +/- 4 to 5 seconds a day, which is outstanding. I can say that tempera... - more details

Stealthy stunner

"Stealthy stunner"

Verified Watch Owner Comments: I first tried on this watch at the Sinn store in Frankfurt. The 556 case is a terrific all-purpose size and the applied indices and polished handset give this model a more formal appearance than the traditional 556. While in some situations the MOP dial can appear a simple dark grey, when the light catches it, it explodes with color.

I find myself admiring it throughout the day to see how different patterns emerge. The watch was out of stock during my time in Germany, but Watchbuys notified me (well ahead of the estimated time) when they became available again. Customer service was great and the shipping was fast. A great all around experience and a watch I expect to enjoy for a long time.

One of the most engaging dials I have ever seen

"One of the most engaging dials I have ever seen"

Verified Watch Owner Comments: I hesitated to purchase this watch for quite some time. Don't make my mistake. I haven't been able to stop looking at this dial. It catches my attention unlike any other watch in my collection.

In some angles, the dial appears flat and inky black like how the standard 556s. In other light it can look textured and show flares of pinks and greens. With intense light, the colors really stand out against the inky black.

Sinn 556 I MOP

"Sinn 556 I MOP"

Verified Watch Owner Comments: This 556 has been on my wrist almost everyday since it arrived. It's been very enjoyable to wear thus far—it was easy to size with the included tools and the proportions are great for my 16.5cm (6.5) wrist. The black MOP dial is really special and versatile. It's an inky, gloss black in most low lighting environments, but then has waves of gray and big rainbow pops of color (mostly pinks and greens) in higher lighting environments. Depending on the angle, the dial is constantly changing, which is really cool. The fact that each MOP dial is unique is a great feature in my opinion. The lume is strong and impressive, and the simple design and layout of the hands/dial make reading time in the dark very easy. The H-link bracelet is a smart looking design. The stamped clasp is bulky/clunky and rattles a little, but I think it's because it houses the dive extension and doesn't bother me that much. The watch has been running +10s/d on average since arriving, which is technically still w... - more details