Sinn UX EZM 2 B Hydro on Bracelet


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• Verified Owner Reviews (4 reviews)
SKU: SI-169

Watch Brand: Sinn

Learn more about Sinn watches

Diver's watch with quartz movement and oil filled case
• Case diameter (mm): 44.0
• Case thickness (mm): 13.3
• Case lug width (mm): 22
• Weight - head only (grams): 105
• Water resistance: 5,000 meters
• Case back: Solid
• Case finish: Matte
• Case metal: Submarine steel
• Dial color: Black
• Front crystal: Sapphire
• Tegimented: Bezel only
• Movement: Quartz oil filled
• Manufacturer's limited warranty: 3 years
• Warranty service: Sinn Germany
° Earn 4880 WatchPoint Rewards on this purchase
WatchBuys Direct Price: $2,440.00
Availability: In Stock - Ships Immediately

Sinn UX EZM 2 B Hydro on Bracelet
Sinn UX EZM 2 B Hydro on Bracelet
Product Details

The Sinn UX pushes watch technology to the limits. Like the Sinn U1 and U2 watches, the Sinn UX features a case made from the same submarine steel that is being used to build the latest generation of German military submarines.

The steel was procured by Sinn from a steel supplier to Emden GmbH, one of the North Sea shipbuilding yards in Germany which builds 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.



Unlike the Sinn U1 and Sinn U2, the Sinn UX features a quartz movement rather than a mechanical movement.

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.

The special battery used to power the movement has an expected life of seven years before needing to be replaced.




The Sinn UX is covered with a thick sapphire crystal for extreme protection. This sapphire crystal features a special anti-reflective coating that is scratch resistant - the coating itself has been hardened to 1,800 HV.

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 bezel features Sinn's Tegiment technology.

This watch is designed for operation in extreme temperature variations - it operates in temperatures between -20 and + 60 degrees Celsius.

The movement is water resistant to 5,000 meters, and the case is pressure tested to a diving depth of 12,000 meters as certified by Germanischer Lloyd in Hamburg.

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 anti-reflective coating, and stainless steel bracelet.


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 Mount Joy, 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.

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 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 free using FedEx 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.


Watch Reviews From Verified Buyers
100% <b>• Verified Owner Reviews</b>100% • Verified Owner Reviews (4 reviews)
Rate this watch: Positive Review  Positive Review Negative Review  Negative Review  

Understated yet serious

"Understated yet serious"

Verified Owner Comments: Finally pulled the trigger on this watch after a lot of homework online and youtube. Not disappointed. Similar to the professionals this watch was designed for, it does not scream look at me!. This watch has a silent confidence. It wears well on my close to 8 inch wrist and in my opinion could be worn at a barbecue with a polo shirt, or with a sport jacket and slacks. Most customers will not require all the qualities engineered into this watch, but its really cool to have )

Watchbuys was very professional and prompt. . Excellent communication. If your on the fence about buying this watch, go for it. No buyers remorse.

Love it.

"Love it."

Verified Owner Comments: I love this watch. It's good looking, accurate, and full of cool tech. Highly recommended!

What I wanted

"What I wanted"

Verified Owner Comments: In this case I wanted a lower maintenance quartz watch and this passes the test perfectly, and it is deadly accurate too.

So coveted

"So coveted"

Verified Owner Comments: My friend saw this on my wrist and immediately offered me tickets to the Halloween party at the Playboy Mansion for the watch.

I declined but knew that I had a fantastic watch!


Please note that because this watch is oil filled using proprietary Sinn technology, all service must be done by Sinn in Frankfurt, Germany.

This requirement extends to both service under warranty and after warranty.

The battery in this watch has an estimated useful life of seven years after which time the watch must be sent to Sinn for a new battery, flushing of the case, cleaning of the movement, filling with new oil, new seals and pressure testing.

There are no watchmakers or service centers anywhere in the world other than at Sinn in Frankfurt who can service Sinn oil-filled quartz watches (EZM 2, UX Series, Hydro Series).

Any attempt to service this watch, change the battery or open the case by someone other than Sinn will lead to permanent damage and should not be attempted under any circumstances.

Please click here for instructions on sending this watch to Sinn in Germany for service.