Featured Release Sinn

Release: Sinn U1 DS
A Dial Cut from a Different Cloth

This is a big year for Sinn as they celebrate their 60th anniversary this year. Time sure flies for these Flieger pioneers. To kick things off, Sinn announces a fresh addition to the U1 lineup: The Sinn U1 DS.  

This new U1 will catch your attention at very first glance with its captivating distressed brown dial.  As the light hits the dial from different angles, the dial can display different colors.  This apparent magic is explained by part of the name of the watch. DS means Dekorschliff in German. In plain English this means decorative grinding. The machine grinding requires manual intervention and as such each and every single dial will be unique.

No two dials are exactly the same.  For the Sinn connoisseurs amongst the readers, this type of dial has been seen before in The Hourglass limited edition 356 Flieger.  This being a Sinn watch, the brand has ensured that despite this intricate dial design you can still comfortably see and read the time on the dial.

Similar to the non-limited U1 watches, the U1 DS is also encased in German submarine steel that has been bead-blasted. It is pressure resistant to 1000 meters, anti-magnetic and corrosion resistant to sea water. 

Need some submarine steel?

With the tegimented treatment applied, the watch is practically scratch proof.  As per Sinn ‘the method is not based on the application of a coating. Instead it is the surface of the material itself which is hardened by means of a special process, thereby creating a protective layer (“tegimentum” in Latin). The surface of any watch hardened using TEGIMENT Technology has a significantly greater level of protection against scratches than that afforded by the hardness of the base material’.

For more detail on this, feel free to dive right into this past article. Seeing how well designed and built for purpose that these watches are, I seriously doubt you will outlive this watch in daily desk diving scenarios. Please do not try to put yourself in danger just to test the watch to its limits. There will be only one outcome to any test, the watch will win.  

Beating inside is the robust SW200-1. This is not exactly the most highly decorated movement, but it is great for a sports watch and easy to service from any competent watchmaker. 

This will be limited production of 500 pieces and should be available in Sinn authorized dealers soon. 


  • Limited to 500 pieces
  • Case diameter: 44 mm
  • Band lug width: 22 mm
  • Case thickness: 14.7 mm
  • Dial with decorative grinding
  • Case and crownCrown The knob on the outside of the watch that you typically use to either wind the mainspring or set the time [Learn More] made of high-strength seawater-resistant German Submarine Steel
  • Case and bezel with TEGIMENT Technology and therefore especially scratch‑resistant
  • Tested based on European diving equipment standards and certified by DNV GL
  • Captive diver’s bezel with minute ratcheting
  • Crown at 4 o’clock to prevent pressure on the back of the hand
  • Sapphire crystal glass
  • Waterproof and pressure-resistant to 1,000 m diving depth (= 100 bar), certified by DNV GL
  • Low pressure resistant
  • Movement: SW 200-1, Self-winding mechanism, 26 bearing jewelsJewels Watch jewels are small, synthetic sapphire or ruby bearings that are used in mechanical watches to reduce friction and wear on moving parts. They are typically made from corundum. They are used as bearings for a.o. the pivots to reduce friction. [Learn More], 28.800 semi-oscillations per hour, Seconds stop function, Anti-magnetic as per DIN 8309

More info about this release right here.

While this is the first Sinn watch to be released in 2021, this will surely not be the last. Stay tuned for more…

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