Sinn U50 HYDRO SDR 1051.040 Sinn

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The Sinn U50 HYDRO SDR 1051.040 is an incredible Made in Germany diving watch. If you are familiar with Sinn watches the U1’s little brother, the U50, normally needs no introduction. Little may be a bit of a stretch as the watch is still 41mm in diameter, but Sinn has expanded the U50 line with an amazing innovation. As you may notice from the name, this is no regular U50! The watch is filled with oil (the Sinn HYDRO technology) which allows for an incredible water resistance, alongside absolutely impeccable legibility from all angles.

Let’s start with the easy part: the watch is stylish and extremely legible. Every element has a great mix of the iconic design with practicality and functionality added in. When you wear an U50 it will stand out in a discreet manner showing the right mix of popping red elements and simple colours, without falling for the tendency of watch manufacturers to overdo things. 

But the real gem is in the technical elements of the watch as those are absolutely top notch. This is a well balanced, comfortable watch due to the crown at 4, extremely well designed bracelet and case design. But it’s also a very serious watch with 5000m water resistance (DNV certified), tegimented bezel with Black Hard coating and a submarine steel case and bracelet, with a Ronda 715 Li Swiss Made quartz movement under the hood. 

The U50 is versatile, it’s practical, it’s iconic, it’s quite simply one of the best diving watches out there.