Sinn 556 A RS on H-Link Bracelet

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• Verified Watch Owner Reviews (30 reviews)
SKU: SI-515

Watch Brand: Sinn

Sinn North America

Pilot's watch with sporty red seconds hand
• 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: Black
• 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: $1,620.00
Availability: Temporarily Sold Out

Sinn 556 A RS on H-Link Bracelet
Sinn 556 A RS on H-Link Bracelet

(Click Image to Enlarge)
Product Details

If the Sinn 556 A RS (red seconds) looks familiar, you're not mistaken.  This watch is now a general release by Sinn, but for years was a WatchBuys special edition.

Our special edition was such a hit that Sinn decided to expand production and add the watch to its worldwide collection.

More Attitude

The Sinn 556 A RS has all of the great features of the bestselling Sinn 556 A, but our clients say the red seconds hand offers "a bit more attitude."

The red seconds hand gives the watch a sporty look and feel, while still providing stark contrast against the matte black dial.

The Sinn 556 Series offers a great mix of performance, durability and classic Sinn design.  For these reasons, they are among Sinn's bestselling watches of all time.

This version of the Sinn 556 RS is marked "A" for Arabic 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 four anchor numerals on the quarter hours provide positioning for a quick read of the time, and the bold indices and hands contrast well against the matte black dial.  We think this watch is one of the most legible that we carry.

Important features of this watch include:

  • Case made of satinized stainless steel
  • Sapphire crystal glass on both sides
  • Water resistant to 200 meters
  • Date display at 4:30
  • SuperLuminova on the hands and hours (glows green)
  • Matte black dial
  • Double antireflective coating
  • Low pressure resistant

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

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 (30 reviews)

Outstanding Timepiece

"Outstanding Timepiece"

Verified Watch Owner Comments: I purchased this timepiece for the design, but have been very impressed with how well this watch wears. It goes great with nearly everything I wear. It's the perfect dimensions for my 7 1/4 wrist.

It wears great on the h link bracelet, which I was able to achieve a great fit in short order with micro adjustments available to combat the summer swell. I haven't put it on a timegrapher to this point, but I would expect to be within chronometer level specs.

Watchbuys communicated extremely well and overall exceeded my expectations and have earned my business moving forward.

Good value tool watch

"Good value tool watch"

Verified Watch Owner Comments: Overall this is an impressive tool watch for the money. Packaging / presentation is well done. Nice to include tools. The black ink dial and anti reflective coatings make this watch pop. Love the red seconds. Fit and feel are excellent especially at this price point.

I absolutely love wearing this watch. I wish this one had a gold tone rotor. I wish the luminescence lasted longer. I wish the clasp was milled vs stamped. If the above were to be done this could be your one watch! This is my least expensive watch and it has been getting the most wrist time.

Sinn 556 A RS on H-link

"Sinn 556 A RS on H-link"

Verified Watch Owner Comments: Great looking watch. Really like the red seconds hand. Was able to get a good fit on my 6.75” wrist.

A great first mechanical watch

"A great first mechanical watch"

Verified Watch Owner Comments: I've had my Sinn 556A RS for a few weeks now and I'm very happy with my purchase. As someone new to the world of mechanical watches, I was overwhelmed by the number of options I could have gone with. After a ton of research and falling in love with the aesthetics of Sinn watches in general, the 556 seemed like a great pick. And it is!

The bracelet works well, it keeps great time (around +4 seconds per day by my inexact measure), and the dial is incredibly legible.

Amazing watch in every way

"Amazing watch in every way"

Verified Watch Owner Comments: This is my first Sinn watch and it absolutely exceeded all expectations. You really don’t understand the care, quality and craftsmanship until you put it on. I’ve gotten many compliments. Love it so much.

First time

"First time"

Verified Watch Owner Comments: This was my first time purchasing from watchbuys but also my first Sinn. No complaints with the watch itself or watchbuys whatsoever. Shipping was extremely fast and everything came packaged nicely. Will definitely recommend watchbuys to anyone and will use them again when I’m in the market.

Sinn 556 A RS

"Sinn 556 A RS"

Verified Watch Owner Comments: Great experience. Shipping was fast and the personalized call to verify the order and answer any questions was a great touch.

The watch is amazing and exactly as I expected. I am not usually a bracelet person but find the H Link bracelet to be really comfortable. Running at +2 seconds a day for the first week. I wouldn’t hesitate to recommend buying another Sinn from Watchbuys at some point in the future.

Solid Adventure Watch

"Solid Adventure Watch"

Verified Watch Owner Comments: Amazingly substantial adventure watch. Highly legible, accurate, solid bracelet, and stylishly minimalistic. Highly recommended.

Fantastic watch and fantastic buying experience

"Fantastic watch and fantastic buying experience"

Verified Watch Owner Comments: After discovering the Sinn watch brand and understanding their limited North America market, I was came across Sinn’s authorized dealer in the US: WatchBuys. I purchased the 556 A RS online and couldn’t be happier with the watch or the buying experience.

I especially enjoyed the very personal phone call I received from WatchBuys to confirm my purchase and to discuss shipping and delivery protocols. I would most certainly recommend WatchBuys to any serious watch enthusiast or collector. They are very professional and made my purchasing experience enjoyable.

And BTW, the Sinn 556 is simply stunning! Thank you! John H. Norfolk, Virginia

Love it - Fits small wrist and “invisible” date window

"Love it - Fits small wrist and “invisible” date window"

Verified Watch Owner Comments: I have a 6.25 inch wrist and this fits perfectly. Also the date, give its size and location is "invisible” until you look for it, which I love. Super impressed so far with quality. My first but now likely not my last Sinn.

Sinn 556: the infatuation marvel

"Sinn 556: the infatuation marvel"

Verified Watch Owner Comments: I (instantly) responded exceptionally to this watch: Sinn 556A. I was liking some others, lower priced ones, i.e. khaki/Vaer/movado, but the 556 effected me on a totally other level.

Watchbuys was top-notch:, liked their packaging, support, 2-day FedEx delivery, and service - you can call them, they answer and knowledgeably assist.

Sinn 556 A RS

"Sinn 556 A RS"

Verified Watch Owner Comments: German Perfection. You get what you pay for it.

First luxury watch

"First luxury watch"

Verified Watch Owner Comments: I've always been intrigued with watches and after owning various smartwatches for the better part of the past 10 years, I finally took the plunge on a real watch and decided on Sinn.

The purchase experience through WatchBuys was great and shipping was very fast. The watch itself exceeded my expectations in terms of quality. The only thing I'm disappointed by is that it does seem to run about 8-9 seconds fast each day, which is about on par with my Hamilton Khaki. Was kinda hoping it would be under 5 seconds but maybe I just need some time for it to break in? Either way, I'm happy with my purchase, I love looking at this piece.

Some thoughts on the classic negatives

"Some thoughts on the classic negatives"

Verified Watch Owner Comments: If you’ve reached this far your 556 research, you’ve probably heard all the usually comments. It’s a great size, wears great, and is a decent price. Let me add some details on the classic negatives and how I came to buy it. Lume - bathe worst sort of the watch, lume is poor to okay. I’d say 3-4/10. Movement- I believe it’s an SW-200 now. My reserve was the power reserve. I wind it 5 times on days I don’t wear it and have no problems.

Bracelet- very comfortable. Honestly easy to size. If you’ve ever adjusted a seiko bracelet you’ll be fine. The clasp is okay to good. Reviewers who trash the clasp are being fairly harsh. I’d give it a 5-6/10. How do you choose the regular seconds or red seconds? Just buy whatever one is in stock, that’s what I did.

Sinn 556 on bracelet

"Sinn 556 on bracelet"

Verified Watch Owner Comments: My second Siinn from Watchbuys and very happy.with the purchases. Great watches for which they are the only agents.So happy with the watches and staff the, that I’m going to buy a Hanhart today. TC Kopjas, MD

First Sinn

"First Sinn"

Verified Watch Owner Comments: Long time watch collector, and love the 556, perfect size and understated.

Cannot be more happy with my purchase!

Great daily wear watch

"Great daily wear watch"

Verified Watch Owner Comments: I own several Sinn watches (U50, U1, 240St, and 836) all of these are larger than the 556 so I was a little worried about the case size. All my fears were quickly resolved once I put this 556rs on my wrist, the dial has so much presence it looks like a 40mm.

The quality of the watch is the same as I have become use to with Sinn, great case finishing, dial, and precision time keeping. It would be hard to find another watch out there in this price bracket that delivers this much for the money.

Watchbuys is always easy to work with and has top notch service, one of my favorite dealers to work with. You cannot go wrong with this 556a rs or with buying it from Watchbuys!

SINN A RS on H-link

"SINN A RS on H-link"

Verified Watch Owner Comments: My husband is extremely satisfied with this watch. He keeps track of its accuracy all day and it hasn’t skipped a beat. It is as close to perfect as a watch could get.

My First Mechanical

"My First Mechanical"

Verified Watch Owner Comments: This is my first mechanical watch... and I love it. The simplicity of the dial with the added pop of red is perfect. It disappears on my 6.75in wrist and is suptemely comfortable. Coming from G-Shocks, I am still getting used to the size and sometimes wish I had gone with the 856. My 6.75in wrist is rather flat so I can pull off larger watches on my 6'1 frame. In all reality, it probably just means I'll be picking up another Sinn in the future while also still loving this 556. I do love the H link bracelet but I understand the complaints about the clasp, to a degree. I have no experience with other clasps to compare it to but the engagement is definitely not a high-precision, satisfying click. However it's secure and very comfortable. While it took some trial and error playing with the links and micro-adjusts to find the right fit, the process was easy enough. My example is running around +2-3 SPD so not too shabby on the accuracy front as well. All in all, if you're used to larger... - more details

Sinn 556

"Sinn 556"

Verified Watch Owner Comments: First purchase, could not have had a better experience w Watchbuys.

The 556aRS is a beautiful watch that feels better in person then it looks on the screen. Terrific watch.

Couldn't be better.

"Couldn't be better."

Verified Watch Owner Comments: The Sinn 556 A RA has been on my want list for a year or so. I finally ordered one and received it in a timely manner. The watch arrived in a package that was probably the best packed item I have ever received. Delivered via FedEx I had to sign for it in person. Safely delivered I opened the package and was not disappointed. This watch is exactly everything I expected it to be. Sweet spot size for my 7.5 inch wrist. The finishing is excellent. The anti-reflective crystal is brilliantly clear. The accuracy is about the same as my Rolex watches. Very good. The date window is small but that was not unexpected. I like that it has minimal presence on the dial. One concern I had was the clasp. Reviewers have complained a bit about not being able to get a finger hold to open it. I have no such problem with it. Another concern with the clasp was the friction/pressure style. I’ve had bad luck with others. Not so with the design of this one. Works very well. Overall I have no negative issues... - more details

Very first Sinn

"Very first Sinn"

Verified Watch Owner Comments: This is my very first Sinn watch and it definitely lives up to the hype you can definitely tell the build quality is superb.

I was debating on whether I should get the 556 in the white second hand or the red second hand but I ultimately went with the red second hand because I think it gives it more character and stands out a bit more.

So smooth it must be a Sinn

"So smooth it must be a Sinn"

Verified Watch Owner Comments: Where to start, great customer service, and followup.

And then there is the Sinn A RS - simply wonderful. Nice fit and finish, perhaps the perfect size.

The red seconds hand has a smooth sweep across the dial that says there is more to this watch.

It is not perfect, wish the clasp had an on-the-fly adjustment and 2 button release, but nothing that would keep me from buying, or recommending, this again and again.

Great Watch

"Great Watch"

Verified Watch Owner Comments: Love the minimalist design and quality build. Still a great value for the money. Fast shipping too.

Nice watch

"Nice watch"

Verified Watch Owner Comments: Nice watch. Love the red hand.

Seems to be 2-3 seconds fast after synchronizing to

The only watch you'll ever need

"The only watch you'll ever need"

Verified Watch Owner Comments: This watch offers so much value for the price. 200 meter water resistance, screw-down crown, sapphire crystal with AR coating, exhibition movement. Not to mention how attractive the dial is. The matte black dial and red seconds hand adds to the sportiness of this watch. The red seconds helps offset the white from the numerals and really enhances the watch.

I also love the subtle date window at the 4:30 position and is the only watch I've seen to have the date display upright from that spot rather than diagonal. 38.5mm is such a comfortable size that will wear well on a variety of wrist sizes.

The buying experience was quick and easy and I'll look to add another Sinn to my collection in the future.

Absolutely stunning

"Absolutely stunning"

Verified Watch Owner Comments: My first Sinn but won't be my last. Incredible build quality, dial and casevare amazing. Worth the price and wait.

Watchbuys CS is the best in the industry.

Sinn 556 A RS

"Sinn 556 A RS"

Verified Watch Owner Comments: Great watch, great buying experience

Perfect everyday watch

"Perfect everyday watch"

Verified Watch Owner Comments: This is a great watch. Easy to read with the numbers at 12, 3, 6 and 9. Really happy that I picked the red seconds version as the red adds some pizzazz and differentiates the seconds from the other hands.

I also have a 104 and although I like both very much, I prefer this watch. I also like the H link bracelet vs the other options. Super comfortable, durable and all weather.

fantastic watch

"fantastic watch"

Verified Watch Owner Comments: It wears small on me. But the quality is apparent. Legibility is excellent. This has become my favorite watch.