SINN U212 EZM 16 Automatic 47mm German Submarine Steel Bracelet 1000m Diver


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We take trades against any of our watches!!! We also buy watch packages!!

Background of the U212 Designation

The U212 and U212A are the cream of the German submarine crop – they represent Germany’s excellence in both technology and construction. The submarine was designed for the navy in both Germany and Italy, and is non-nuclear.

The propulsion system is quite unique – it uses hydrogen/oxygen propulsion. This method had been considered before, but was deemed a health and fire risk.

The German U212 and U212A have developed a system to relocate the tanks and change the way the mixture is used, making this propulsion system safe. This submarine can stay submerged for up to three weeks.

This cutting edge technology and excellence in engineering is what Sinn brings to the new Sinn U212 EZM 16.

Watch Features

In addition to having the largest case Sinn has ever made (47 mm), this watch features a number of Sinn’s most popular technologies:


  • Case made in Glashutte, Germany from German submarine steel
  • Extended power reserve of 56 hours
  • Dry hold system uses copper sulphate capsule and inert gas to control humidity and fogging
  • Water resistant to 1,000 meters
  • Captive diver’s bezel with minute ratcheting
  • Resistant to the effects of saltwater
  • This watch is fitted with a new Sinn bracelet in stainless steel with 24 mm lug width



MODEL: U212 EZM 16

MOVEMENT: Swiss Automatic

CASE: German Submarine Steel

CROWN: Screw Down crown

SIZE: 47mm (Largest Sinn Case)

LUGS: 24mm

DIAL: Black Dial with Vintage Lume

BEZEL: German Submarine Steel Rotating Bezel 

CONDITION: Brand New July 2021! – Factory warranty until July 2024!

BOXES/PAPERS: 100% Complete Set – Everything as shown in pictures!


STRAP/BRACELET: – Original Sinn German Stainless Steel Bracelet with all links and with folding deployment clasp.


We buy similar watches…large packages as well as one at a time. We also take trades against any of our watches…

Let us know what you have in your collection!! I consider all watches in trade! Please upload pictures and include details of your trades through my Trade/Buy tab at the top of my homepage.