Sinn U2 Black EZM 5 on Strap

SKU: SI-206

Average Watch Ratings: 100% (8 reviews)

Mechanical diver's watch with two time zones fully Tegimented - more details
Case diameter (mm): 44.0
Case thickness (mm): 15.4
Case lug width (mm): 22
Case back: Solid
Case metal: Black PVD Submarine steel
Dial color: Black
Tegimented: Fully
Winding: Automatic
Inert gas: Filled
Copper sulphate: Capsule
Manufacturer's limited warranty: 3 years

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WatchBuys Direct Price: $3,440.00
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Sinn U2 Black EZM 5 on Strap
Sinn U2 Black EZM 5 on Strap
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Product Details 

The Sinn U2 EZM 5 Schwarz (Black) has become one of our best selling watches and for good reason - it's tough, packed with technology and looks great on your wrist.

All Tegimented

This watch is far more than simply a black version of the standard Sinn U2. When Sinn first introduced the U Diver's Series several years ago, the most requested feature was an all Tegimented watch (the standard U models feature a Tegimented bezel).

The Sinn U2 Black is constructed from the same steel that is used on the outer hull of submarines. The steel was procured by Sinn from a steel supplier to Emden GmbH, one of Germanys North Sea shipbuilding yards who construct submarines from the very same steel. 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.

Next, the Sinn U2 Black features a completely Tegimented case, bezel, crown and case back. 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 layer on this watch in combination with the PVD coating has a hardness in excess of 2,000 Vickers which is more than nine times harder than standard steel.

The Tegiment layer 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. This process increases the submarine steel's resistance to corrosion, as well as provides extreme protection from scratches and other damage to the case.

Engineering and Technology

The technology and design elements used to create the Sinn U2 Black go far beyond standards used at most watch companies.

The Sinn U2 Black contains features you won't find in other watches:

  • Full Tegiment construction
  • Case constructed of submarine steel for superior resistance to corrosion and scratches
  • Double Viton seals
  • Two Sinn copper sulphate capsules to absorb moisture and humidity
  • Inert gasses have been inserted into the case to promote a dry and stable environment
  • Bezel is screwed to the case using an exclusive Sinn design
  • Built to the standards of the German special forces - EZM 5
  • Second time zone complication indicated by a red tipped hour hand
  • Double coated anti-reflective sapphire crystal hardened with Tegiment process
  • In house case construction from Sinn's affiliated company in Glashutte, Germany
  • Increased water resistance to 2,000 meters
  • 4.6 mm thick sapphire crystal

The uni-directional ratchet operated rotating bezel is also milled from this submarine steel. The indices are machined directly into the bezel without the use of bezel inserts, which can corrode or come loose at deep depths. The international testing lab of Germanischen Lloyd has tested the Sinn U2 Black, and determined that the watch can be certified as water resistant to 2,000 meters. This same firm tests submarines for their ability to withstand the effects of underwater use.

Bold New Look

This is a watch with "attitude". The new black case design and black bezel are all Sinn, and present an almost "stealth" appearance.

And this watch has to perform - it's part of the EZM family of watches.

Sinn is known for their professional special forces watches, called the Einsatzzeitmesser (EZM - in English "Mission Timer") series. Sinn has long been a supplier of watches to various divisions of the German special forces, including the GSG-9, border protection, customs, military and special police divisions. Designing watches for these units carries a number of requirements, including resistance to shocks, water, magnetism and temperature changes among others.

This watch ships with a silicone rubber strap with double push deployant buckle (non-black) and fliplock safety clasp.

Watch Reviews

Average Watch Ratings: 100% (8 reviews)

>> Read all watch reviews [8]  |  Write your own watch review


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"Toughest Watch I Have Owned!"

Posted by: RZ

Comments about this watch: I have had this watch for a couple of weeks now and have already rated it once. It's a stunning piece and very well made. I wear it everyday and am VERY happy with it. I felt compelled to add another review because of a recent incident with the watch. I am always careful with my watches but a couple of days ago, while opening a door, I struck the watch crystal and bezel against a metal door knob. It was a hard impact and I was not happy with myself. When I inspected the watch, there wasn't a sin... - more details

"Sinn U2 Black EZM 5! Tough Watch!"

Posted by: Ramsey Zakhary

Comments about this watch: I just received my Sinn U2 Black EZM 5 and am VERY pleased with it. Sinn quality and craftsmanship are first rate. The watch has a great appearance and is very comfortable to wear. The people at WatchBuys are great and very helpful! I highly recommend this watch and WatchBuys.

"German watchmaking at it's best"

Posted by: Alex

Comments about this watch: Great timepiece for the money. Solid steel case able to withstand strong impacts. Recently ran a marathon with it without any problems. Keeps time with great accuracy. Dial is nice with combination of red and white. Highly recommended for those with an active lifestyle.

"Serious Technology"

Posted by: Mark

Comments about this watch: As a child, I grew up wearing Swiss Army watches. Now that I'm an adult I've gotten a man's version; the Sinn U2 S. It has taken the Swiss Army watch idea but put serious technology into it, tegimented anti-magnetic U-boat steel toughness, Ar inert gas and copper sulphate moisture prevention to prolong time between servicing, 2000m depth rating, 44mm diameter and 15.5mm thick, this is one big tough tool watch that has yet to be topped. It is very comfortable to wear and is extremely understated ... - more details


Posted by: Marc

Comments about this watch: Tremendous timepiece. My job in the military has me in and out of birds, in and out of MRAPs/Strykers, and generally living in dust. Given these conditions, this watch holds up remarkably well. Additionally, it's attractive as well as low-profile. The second timezone function is well done, however it won't help you in Afghanistan (which is half an hour off from the rest of the world...though that's more Afghanistan's fault than Sinn's). To give you an idea of the toughness and functionality of t... - more details

"Tough, Tough, Tough...."

Posted by: Salman

Comments about this watch: This watch is very well designed and German Engineering at it's best. One tough, yet refined looking watch...The WatchBuys team have been nothing but a pleasure to deal with!

"Tough as Nails and Looks Fantastic!"

Posted by: Jim Martin

Comments about this watch: I have worn this watch nonstop since receiving it in Oct 2008. This watch wears comfortably all day and looks great with any attire. I have knocked this watch on door knobs, the metal frame of my recliner and against my truck door (multiple times) and it shows no wear at all. Not a scratch!! I have saved my nicer watches (Ulysse Nardin and Jaeger LeCoultre) for suits. This Sinn is an excellent buy. Thanks to the guys at Sinn for making such a tough watch that looks great as well.

"U2 S EZM 5 Lives Up to the Hype!"

Posted by: Rob L.

Comments about this watch:

I just received my U2 S EZM and I am blown away by the attention to detail that Sinn put into this watch. The technology is top notch and the execution of it lets you know that Sinn is a serious watch company.
The guys at WatchBuys are top notch as well.

>> Read all watch reviews [8] |  Write your own watch review


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