Sinn 104 A St Sa on Fine Link Bracelet

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• Verified Watch Owner Reviews (10 reviews)
SKU: SI-365

Watch Brand: Sinn

Sinn North America

Automatic winding pilot's watch in steel on fine link bracelet
• Watch diameter (mm): 41.0
• Watch height (mm): 11.9
• Lug width (mm): 20
• Lug to lug (mm): 46.5
• Weight - head only (grams): 73
• Water resistance: 200 meters
• Case back: Transparent
• Case finish: Polished
• Case metal: Stainless steel
• Dial color: Black
• Front crystal: Sapphire
• Calibre: SW220-1
• 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: $1,990.00
Availability: Temporarily Sold Out

Sinn 104 A St Sa on Fine Link Bracelet
Sinn 104 A St Sa on Fine Link Bracelet

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Product Details

The Sinn 104 Series has become one of the most popular in the line.  We literally can't keep these watches in stock.

The original Sinn 104 I St Sa has no numerals on the dial but instead uses indices.

The Sinn 104 A St Sa (Arabic) adds increased legibility to this watch with Arabic numerals.

We love the look of this watch and this small dial change makes quite a difference in the overall look of the watch.

The Sinn 104 A St Sa dial is highly legible, with its three hands providing optimum readability of the time.

As an added benefit, it also features a day/date display at the 3 position with the day display in either English or German (you change the settings through the crown).

The pilot's bezel with minute ratcheting can be rotated on both sides, is securely attached to the case, and features luminous triangle as key mark at 12.

The 104 A St Sa is low pressure resistant to secure the sapphire crystal at high altitudes and is water resistant to a depth of 200 meters.

  • Case made of stainless steel, polished
  • Captive pilot's bezel with minute ratcheting
  • Sapphire crystal glass on both sides
  • Water resistant to 200 meters
  • English and German day display
  • Low pressure resistant
  • Stainless steel fine-link bracelet with solid end links
  • Black dial with Arabic numerals and SuperLuminova

This version of the Sinn 104 A St Sa features a fine-link 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 (10 reviews)

SINN 104

"SINN 104"

Verified Watch Owner Comments: I have not taken this watch off since it arrived. Love the look, and feel of the fine link bracelet. Everything about the dial is pleasing to me, and easy to read. Plus the lume is awesome.

This watch is my new daily, and I recommend it to anyone who is thinking about purchasing one.

SINN customer service is one of the best I ever experienced. They will help, and answer any questions you may have about the watch. I blind bought my watch nervously after watching a lot of videos on YouTube, but when it arrived I knew it was something special, and I’m glad I did. It is definitely a durable time piece rugged, and elegant at the same time.

Watchbuys is a site I trust, and I will be doing business with again in the near future.

Sinn 104A with fine link bracelet

"Sinn 104A with fine link bracelet"

Verified Watch Owner Comments: I recently purchased this watch for my son. He love it and wears it often ... so much that I too fell in love with it and ordered one for myself. The fine link bracelet adds a nice touch of comfort and style. Totally love this one. I also own the green 104i and side by side they are two completely different watches. Sinn watches are a must in my collection

Stunning watch, Painless Transaction

"Stunning watch, Painless Transaction"

Verified Watch Owner Comments: Great buying experience with knowledgeable operator. FedX actually delivered on time.

I'm very satisfied with the watch. The fine link bracelet is stunning, the 41mm case fits my 6.5 inch wrist just fine, the watch is running within COSC specs.

Sinn 104 A st sa

"Sinn 104 A st sa"

Verified Watch Owner Comments: I purchased the sinn 104A st sa and the watch is beautiful and very well made. I emailed Watchbuys for some questions and the responded the next business day not only did they responded I was given a phone and was able to speak with Jon.

I'm impressed with the customer service. Great shopping experience and I'm very happy with the watch not only does it look great it's very accurate.

Sinn 104

"Sinn 104"

Verified Watch Owner Comments: Could not be happier with my 104 A. The quality and attention to detail are top notch. Looking forward to years of this as my daily wearer.

Watch Buys customer service was also great as others have said. The rep advised me on the add'l straps I was considering and gave me a heads up personally when my watch shipped. 10/10 would recommend.

Sin 104 - Perfect

"Sin 104 - Perfect"

Verified Watch Owner Comments: Watch and buying experience was perfect. Came in 2 days brand new with authenticity card

Elegant and functional

"Elegant and functional"

Verified Watch Owner Comments: This watch checks many boxes for me. My Sinn 104 is perfectly sized for my 7.25” wrist and is very elegant when coupled with the fine link bracelet . The polished and brushed finish blends perfectly, giving this wonderful piece a sense of pure functionality and elegance. Timekeeping is exemplary and the watch is very comfortable on wrist.

Thank you WatchBuys for your excellent customer service in providing these spectacular Sinn watches. Very well done.

Ideal Watch Buying Experience

"Ideal Watch Buying Experience"

Verified Watch Owner Comments: Everything about my buying experience was ideal and met my expectations, which were high. The customer service team was prompt with their call and the shipping was fast and on-time.

Of course, the product is wonderful. The watch arrived in perfect condition and set to the right time! This proves they inspected the watch before shipment and was a really nice detail when I opened the box. Would definitely buy again!

Great Tool Watch

"Great Tool Watch"

Verified Watch Owner Comments: Was deciding on this or the white dial version and went with this because I figured the white hands on black dial would provide better legibility.

Luke lasts all night and the countdown bezel is something I use daily. I went with the fine link bracelet because it matches the polished case. It's very comfortable and easy to size. I also find the push button deployant clasp is easier to use then the H-Link bracelet's fold over clasp.

Beautiful 104A

"Beautiful 104A"

Verified Watch Owner Comments: The Sinn 104A is one of the best designed watches I have ever seen. The case has a classic look and really makes the watch versatile. You can throw it on a Nato or Zulu strap and it looks stunning. At first I was concerned about the pilot's captive bezel, being so used to standard dive bezels. I quickly got adjusted to it, as the bezel is so clearly laid out. You can use the bezel to count out elapsed minutes or count it down which is easy and extremely useful. The syringe hands are eloquent and pair well with the numerals which makes reading time at a quick glance a breeze. The lume on the numbers are amazing. They soak up light fast and the glow lasts through the middle of night. The stainless bracelet for the 104 is worth every penny and is super comfortable, especially since there are two different size links making it easy to the get the right fit. The bracelet uses screws instead of pushpins, which is just another hint of the craftsmanship and effort Sinn puts into their prod... - more details