Sinn 104 I St Sa B on Strap

Watch Reviews - Scroll Down to Product Tabs

• Verified Watch Owner Reviews (27 reviews)
SKU: SI-468

Watch Brand: Sinn

Sinn North America

Automatic winding pilot's watch with blue sunburst dial
• 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: Blue
• Front crystal: Sapphire
• Calibre: SW220-1
• Movement: Automatic mechanical
• Strap or bracelet: Strap
• Manufacturer's limited warranty: 2 years
• Warranty service: RGM or Sinn

WatchPoint Rewards Logo
Learn how to earn 3280 WatchPoint Rewards

WatchBuys Direct Price: $1,640.00
Availability: Temporarily Sold Out

Sinn 104 I St Sa B on Strap
Sinn 104 I St Sa B on Strap

(Click Image to Enlarge)
Product Details

The Long Requested Watch

We have received requests for this Sinn watch for a long time.  In fact, it seems at every Road Show event one of the first questions we are asked is "When will Sinn make a version of the Sinn 104 with a blue dial?"

Sinn has created a deep blue dial using traditional ornamental grinding techniques to produce a sunburst pattern.  The color of this dial will change depending upon the light and angle producing deep, rich colors of blue in various shades.

The result is a striking Sinn 104 I that rounds out the collection.

Although the Sinn 104 I St Sa B takes design cues from chronograph watches, it is not a chronograph but rather a time, day, date and rotating bezel watch.

And to make things even more interesting the date display alternates between German and English if you are trying to brush up on your German language skills.

Everything about this watch is top notch, from the chronometer grade movement to the sapphire crystals used on both front and back, and the design and finish of the case leave no doubt that it's a Sinn.

This pilot's watch is water resistant to 200 meters. The ratcheting bezel is of Sinn's design and will not snap off the case if hit due to its screwed bezel construction.

Important features of this watch include:
  • 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
  • Rich blue dial with sunburst decoration

This watch is fitted with a Sinn brown calf leather vintage style strap with black stitching.

You might also be interested in these watches:

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 (27 reviews)

My end user Pilot watch

"My end user Pilot watch"

Verified Watch Owner Comments: Love my 104 and was glad SINN offered the gradient blue dial! Love it and look forward to a lifetime of service! Great customer service as always!

Epic Daily Wear

"Epic Daily Wear"

Verified Watch Owner Comments: Couldn't be happier with my interaction with Watchbuys and the watch. It is absolutely stunning, well built, and a very reasonable daily wear for me.

Watchbuys did everything you could want to get me the watch in a very expedited manner. I would buy a Sinn again and from Watchbuys without hesitation.

One Watch Collection

"One Watch Collection"

Verified Watch Owner Comments: I love this watch. The value for money. The face color. Even the leather band. It's a great time piece. 10/10

Sinn 104

"Sinn 104"

Verified Watch Owner Comments: Best buying experience that I have had with a company in a long time. Very professional with constant updates of my purchase. The phone call from the company telling me that my watch was shipped and asking if I had any questions was a real plus.

Plus….well, it’s Sinn. What more do you need to say! Quality plus. Thanks Watchbuys!

104 b on strap

"104 b on strap"

Verified Watch Owner Comments: Very happy with the 104, sits comfortably on my wrist and is very stylish.

Watchbuys was easy to deal with and I appreciated the pre ship phone call. A positive experience overall.

Great watch

"Great watch"

Verified Watch Owner Comments: This watch is a stunner! Midnight blue dial with lovely sunburst effect. Watch now runs consistently at +3 secs/day. Timing bezel rotation feels solid and precise. Overall, I'm delighted with this purchase. My other watches are starting to suspect they won't be seeing much wrist time with this new Sinn around.

Customer service at WatchBuys was excellent. Trey answered all my questions and helped with a last minute shipping request I had. Very smooth transaction from start to finish. RA

Great watch

"Great watch"

Verified Watch Owner Comments: Great tool watch from well-known brand. Easy ordering process, great communication, fast delivery. Highly recommended. Thank you Watchbuys!

Great Watch

"Great Watch"

Verified Watch Owner Comments: Beautiful watch! The blue metallic dial is stunning. I have Rolex, Breitling, Omega, Tag, and Tudor, but this Sinn is starting to receive the most wrist time.

Sinn 104 I St B on strap

"Sinn 104 I St B on strap"

Verified Watch Owner Comments: This is perhaps the best watch out there for under $1.5 K. The blue dial is radiant one can’t help but keep staring at it. The dial is clean, easy to read it has a day/date function!!

The brown leather strap compliments the blue face perfectly. Time keeping is not shabby either— my watch keeps chronometer grade time—it gains 4-5 secs a day.

Overall probably the best value proposition for under $1.5 K. Sinn has hit a home run with this watch.

Beautiful watch and a good buying experience

"Beautiful watch and a good buying experience"

Verified Watch Owner Comments:

It was a pleasure doing business with Watchbuys.

They are friendly (without being pushy), knowledgeable about their products, and extremely prompt. The watch was delivered only two days after I placed the order.

The watch (blue dial) is gorgeous. I have about a dozen other watches in my collection, and the build quality is among the best—comparable to Tudor. It is also incredibly accurate, without having COSC certification. I have only worn it for a week, and it is only 4 seconds off the true time, compared to several Seiko watches I own, which are off +/1 15 seconds a day.

Overall, a great experience. If I buy another Sinn, or any other German watch they carry, I’ll definitely use again.

very pleased

"very pleased"

Verified Watch Owner Comments: Watch looks great, glad I waited for the blue dial model. The strap looks fantastic with this watch. Watch keeps good time. No problems.

This is my first Sinn and I will buy more.

Even Better in Person

"Even Better in Person"

Verified Watch Owner Comments: Quite possibly the only watch you will ever need. From the stunning blue dial to what’s under the hood, the 104 does not disappoint. And with each strap change you get a different look. Well done Sinn!

My original Sinn

"My original Sinn"

Verified Watch Owner Comments: I love my 104 St Sa B! Gorgeous. I went back and forth black or blue dial and am so happy with my choice. Not everything lives up to expectations but the 104 does for me.

My experience with watchbuys was stellar from start to finish. Ordering on line was very straightforward and their follow up phone call was much appreciated. I will recommend them to anyone looking to buy a German watch.

Sinn 104 I St Sa B

"Sinn 104 I St Sa B"

Verified Watch Owner Comments: There is nothing more I can say about this watch except it packs a punch way above its class. This is a must-have for anyone let alone collectors and enthusiasts.

WatchBuys made the entire process super easy and I would purchase through them again. A nice surprise was a personal call to go over the item and I had a chance to ask questions. It was the cherry on top of this great experience.

Sinn 104

"Sinn 104"

Verified Watch Owner Comments: Great service. Answered all issues over phone. Watch is great and very accurate with good power reserve. Will buy from them again in future. Very cool

GADA watch

"GADA watch"

Verified Watch Owner Comments: Watch is dashing. Delivery was expedient. Overall very satisfied.

Best decision

"Best decision"

Verified Watch Owner Comments: I had a few brands I was deciding from and went with the 104 blue sunburst dial.

Arrived with a broken spring bar for the buckle but Watchbuys sent a new one out right away. Could not be happier with this watch, it has easily become my EDC and I do not see that changing anytime soon. Bi direction countdown bezel is my favorite part besides the craftsmanship.

I use the bezel everyday while I’m working with deadlines. My only complaint is that I only have one!

Incredible Piece

"Incredible Piece"

Verified Watch Owner Comments: I can't even begin to describe how beautiful this watch is in person. The blue dial is stunning. I'm so glad I chose the blue over black or white. The band is very nice. It was a little on the big side for me. I have 6.5 inch wrists and had to get a hole punched to get it a little smaller. Other than that, there is absolutely nothing I'd change about it!

Watchbuys shipped the item promptly and it arrived right on time. Will be doing business again!

It's a stunner!

"It's a stunner!"

Verified Watch Owner Comments: This is my first Sinn and I am not disappointed. The dial is stunning and the overall legibility is fantastic. The case and bezel are very well done and the vintage strap is a nice touch. I have subsequently ordered the bracelet which gives the watch a different but equally attractive look.

I am 100% pleased with the timepiece and the service from WatchBuys.

Good Experience

"Good Experience"

Verified Watch Owner Comments: Communication was great and answered all my questions and concerns in a reasonable time. Shipping was as expected and painless. I received the watch with all the cards and paperwork brand new with no signs of any usage. Beautiful watch.

Definitely pleasant experience with watchbuys.

Subtle greatness

"Subtle greatness"

Verified Watch Owner Comments: Really appreciate the sharpness of this piece.

The purchase experience with Watchbuys was easy and straightforward as well. On my 6 3/4 inch wrist the leather strap is a little long (on the last slot) so take that into consideration. The look and feel of the strap is great and the blue face is very subtle / very Sinn.

Lume is solid as well. My first Sinn, probably won't be my last!

Amazing Sinn Watch

"Amazing Sinn Watch"

Verified Watch Owner Comments: My journey and appreciation into watches began when I was seven. My Dad bought me a simple quartz watch (I think it was a Casio analog) and I remember being so captivated by the ticking second hand all the way back when I was seven or eight years old. This appreciation for horology was cemented when he bought me a G-Shock MTG-900 after graduating high school (ten years later, it is still working). I’ve been captivated and awed by quartz watches up until a year ago, that the charm fell off. I thought to myself, "I want an automatic.” It was hard getting over the lingering thoughts such as, "it’s not as accurate as a quartz watch” and "it’s pricier,” or "it will cost more to service.” So I ignored the thoughts and researched my first automatic watch purchase. At 24, I cannot comfortably afford a Rolex, Omega, or high end luxury watches (young college graduates are still getting on their feet). My Father had a preference for Breitling watches as a pilot, so I am drawn to the aviation,... - more details

Sinn 104 blue dial

"Sinn 104 blue dial"

Verified Watch Owner Comments: Okay first off I had a very positive buying experience with watch buys. They even called me the before they shipped the watch out.

As for the watch, it is fantastic. I've had it on for 3 days and no joke it's gained about 2 seconds. The blue dial is stunning and I'm glad I got it over the black as I'm a blue watch kind of dude.

If you like blue watches you won't be disappointed and the service from watchbuys is fantastic.

Sinn 104 Blue Dial

"Sinn 104 Blue Dial"

Verified Watch Owner Comments: Excellent craftsmanship! Sinn really knocked it out of the park with this rendition.

As always, Watchbuys provides outstanding customer service. I will purchase my next automatic from them!

Sinn 104, blue face, black bezel on strap

"Sinn 104, blue face, black bezel on strap"

Verified Watch Owner Comments: I own Rolex, Omega, Tag, Hanhart, Seiko......this Watch is an eaxample of classic, clean German ingenuity and quality. When people review my collection this always ranks at the top. Great weight, stunning to look at, yields compliments every time it’s worn. I absolutely love it, gets more wrist time than any of the other of the 14 quality timepieces I own.

This color combo is striking with the brown strap. Love this Brand, adore this watch!

Sinn 104 Blue

"Sinn 104 Blue"

Verified Watch Owner Comments: Very good looking watch, I have a 7.3 inch wrist .Still wears well.Working with WatchBuys’ was Great!

Sin 104

"Sin 104"

Verified Watch Owner Comments: This watch is awesome. And the buying process couldn't have been easier. Shipping was super fast, and the watch looks amazing.