Sinn U2 EZM 5 on Strap

SKU: SI-121

Watch Brand: Sinn

Learn more about Sinn watches
Mechanical diver's watch with two time zones
• Case diameter (mm): 44.0
• Case thickness (mm): 15.4
• Case lug width (mm): 22
• Weight - head only (grams): 114
• Case back: Solid
• Case finish: Matte
• Case metal: Submarine steel
• Dial color: Black
• Tegimented: Bezel only
• Winding: Automatic
• Inert gas: Filled
• Copper sulphate: Capsule
• Manufacturer's limited warranty: 3 years
• Warranty service: RGM or Sinn
• Earn 5300 WatchPoint Rewards on this purchase
Previous Price: $2,910.00
Exchange Rate Savings: (what's this): $260.00
WatchBuys Direct Price: $2,650.00
Availability:  Sold Out - Click Notify Me to Receive Notification of New Stock


Sinn U2 EZM 5 on Strap
Sinn U2 EZM 5 on Strap
Product Details

Step up to the EZM 5 Professional Series with the Sinn U2. The technology and design elements used to create the Sinn U2 go far beyond standards used at most watch companies.

The Sinn U2 contains all the great features of the Sinn U1, but adds the following:

  • Second time zone complication indicated by a red tipped hour hand
  • Increased water resistance to 2,000 meters
  • Special inert gas mixture
  • Two copper sulfate absorbing capsules
  • 4.6 mm thick sapphire crystal

The Sinn U2 case is made from the same German steel that is also used in the construction of 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.

Because of the special steel used from the submarine steel manufacturer, the case resists the effects of exposure to salt water and salt water environments.

The uni-directional ratchet operated rotating bezel is also milled from this submarine steel which is Tegimented. 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 U2, 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.


The Sinn U2 has full UTC functionality through the use of an additional short red tipped hour hand which can be set independently from the primary time zone and indicates the second time zone using a 24 hour display. Screw down crown. The U2 features an inert gas filled cavity with two copper sulphate humidity absorbing capsules, one of which is visible at 6.

Matte black dial with date at 3, Super Luminova on hands and markers, and striking red seconds hand complete the design. Other features include sapphire crystal with hardened anti-reflective coating, and silicone rubber strap with double push deployant buckle and fliplock safety clasp.
 

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, 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 service center, RGM Watch Service located in Pennsylvania. This added service saves our clients the time and effort of returning their watches to Germany for repair. This benefit 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.

Please also 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 contact us and we'll provide instructions for shipping the 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 FedEx. 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. Among the more popular features 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 layer has a hardness of 1,200 Vickers which is five times harder than standard steel (and on some Sinn models even higher - up to 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. The base material is a type of stainless steel also used for surgical implants, and the stainless steel resistance to corrosion is even further improved by the Tegiment hardening process.

The primary advantage to a Tegimented case is extreme resistance to scratches and other case abrasions.

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 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.

Another advantage to this technology is that it prevents the dial and crystal from fogging. 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 knowing so – frequent high altitude flying, metal detectors, audio and video equipment, medical equipment and computer equipment to name a few.

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, "Diamantpaletten”) 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, and each movement is a certified chronometer.

By using this type of movement, Sinn is able to fill the watch with oil, which has the double 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.



TESTAF Certified Pilot's Watches

Lothar Schmidt, Sinn's CEO and owner had long been disturbed by a lack of technical standards for defining a "pilot's watch". As an engineer, Mr. Schmidt was fluent in standards for diver's watches, anti-magnetic watches and the many other technological standards used to manufacture watches.

A widely used reference for standards is DIN, or the Deutsches Institut fr Normung (German Institute for Standardization). Oddly, he discovered there were no DIN standards to cover pilot's watches where such standards exist for example for diver's watches.

The new "Technical Standard for Pilot's Watches" (TESTAF) was developed by the Aachen University of Applied Sciences and establishes the suitability for professional use as a pilot's watch.

  • View Sinn watches in the TESTAF Series

 

Watch Reviews

Great watch - Great WatchBuys

"Great watch - Great WatchBuys"

Mike

Comments about this watch: This is a wonderfully crafted watch and as durable as they come. The quality and design is outstanding.

WatchBuys was great about answering questions at time of purchase. Unfortunately, about 6 months after I received the watch, it stopped working. As I was in Japan at the time, I had an authorized repair shop (this watch is gas-filled so you don't want to take it to just any shop) do the repair. Cost me about $100 to fix, but haven't had any trouble since.

This experience should not deter you from purchasing this watch. It is one of the best in my collection!!

Sinn U2

"Sinn U2"

Jay

Comments about this watch: The build quality of the U2 is superb; easily on par with Rolex, Omega and Breitling which I've owned.

The watch is big, but does not feel big on the wrist. Face is extremely legible. Very pleased with this watch.

The service I received from WatchBuys was second to none. Matt even answered a general question on a Saturday - even though WatchBuys isn't open!

Watch arrived as ordered, brand new in box and with no surprises. Sinn is a great brand. WatchBuys is a great retailer.

Super Watch!

"Super Watch!"

Stefan S.

Comments about this watch: Comfortable to wear,easy to read by day and night, super bold and solid, great design and my favorite sports and action timepiece !!!

Sinn U2 EZM 5

"Sinn U2 EZM 5"

M Dwn

Comments about this watch: One of my two best timepieces, the other being the Sinn U1000S EZM 6.

Build quality is superb and robust.

Sinn U2

"Sinn U2"

Scott

Comments about this watch: Toughest mechanical diver money can buy, with technical features such as Argon filled case and copper sulphate dehumidifying crystals.

Top notch movement and great subtle looker. One for afficionados...

EZM5 U2

"EZM5 U2"

Garrett H.

Comments about this watch: Impressive weight! As always the U series is a no brainer especially when it's an EZM watch.

I strongly recommend picking up the leather strap with red stitching as well...simply stunning!

Sinn U2

"Sinn U2"

Santiago G.

Comments about this watch: Deceptively comfortable watch with a tasteful "tactical" appearance, exceptional overall quality, and superb scratch resistance.

Sinn U2

"Sinn U2"

Fred

Comments about this watch: i can beleive the U2 is full of super quality and feeling when putting on my arm.

I love it, even more than my Panerai

U 2

"U 2"

Dr Jan P.

Comments about this watch: Superb! Great to wear despite weight and size. No sharp edges that catch clothing. Excellent timekeeping.

Superior to my other dive watch, a Rolex Submariner.

U2 Rocks

"U2 Rocks"

Damir

Comments about this watch: I love it!

Sinn U2

"Sinn U2"

G Chin

Comments about this watch: Nice watch. Size and heft are impressive , just the right combo.

Tough well put together watch . An eye-catcher to " Boot " ( pun intended ).

Other Considerations
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