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Sinn UX SDR Special Forces

Sinn UX SDR Special Forces

Model: 403.051

The UX SDR Special Forces Premium watch. Featuring a refined case, impressive dial, and outstanding precision, this timepiece showcases the premium design and quality that independent watchmaker is renowned for.


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NB: All watches are delivered on standard ‘Medium-sized’ bands (suitable for approx.170-200mm wrist sizes). If you require a shorter or longer band please let us know. If you are not sure, simply let us know your wrist circumference and we will make sure you get the correct length.

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Sinn UX SDR Special Forces


Model: 403.051

If it is good enough for the German Special Forces then chances are it should suit your needs as a professional as well. The UX model is the watch that was designed for use by the German Special Forces.

The UX is water proof to all depths! The watch itself is made from special U-boat steel and is full with features and special Sinn technologies including anti reflection, Sinn’s special oil filling, steel tegimentation and temperature resistance from -20 to +60 degrees C. It has been developed for serious sports people and professional divers who require reliable, state-of-the-art instruments at their side.

Now you too can see how it feels to be a secret agent!

A full list of inclusions and technologies can be found below.  This particuluar model carries the GSG9 insignia on the dial as a point of difference and acknowledgement.

Technical Data Model UX SDR (EZM2B) Special Forces
Dial: Black
Case material: U-boat steel
Band: Choose below
Base movement: High Grade Swiss Movement
Movement winding: Quartz chrono
Jewels: 7
Crystal: Sapphire – anti reflective on both sides
Case back: Solid steel, Screw-down crown
Water pressure resistance: All depths
Case diameter: 44.0 mm
Watch height: 13.5 mm
Weigth without band: 105 g
Special technology:

  • The world’s most exact quartz chronograph, exceding Swiss chronometre standard norms
  • Divers’ turning ring
  • Patented Tegiment surface hardness technology
  • Special divers’ extendable band
  • Special oil filling to eliminate mirroring
  • Long lasting illumination indexes
  • Long lasting battery functional down to -25 degrees. Every watch is tested from -20 to +60 degrees C

In conjunction with its instrument chronographs and watches, Sinn is renowned for its sports and diving watches. Sinn diving watches have lead the way in terms of technical advances for timepieces that must withstand rough and demanding conditions. Thanks to its HYDRO technology, Sinn produces anti-reflective diver’s watches that are totally condensation-free, made of stainless steel and capable of reaching any possible diving depth. The HYDRO technology involves filling the watch case with a crystal clear oil that ensures the dial is legible from all angles, does not condense, and will not compress thus allowing it to withstand great water pressure from the outside. Other special features of Sinn water watches include:

  • Gaskets made of highly elastic plastic that remain water tight regardless of pressure
  • Scratch proof sapphire crystal, anti-reflective on both sides to ensure a clear view of the dial at all times
  • Luminous numerals, coated with a special inactive, long-lasting luminous paint
  • Magnetic field protection
  • Adjustable bands (stainless steel, titanium, silicone or shark skin) to allow the watch to be worn over a wet or dry suit

Sinn sport and diver’s watches surpass standard Din norms for diving watches. In fact, they fulfil the prerequisites of DIN 8306 in which strict safety standards for diver’s watches are precisely and extensively established. Anyone serious about diving or extreme water sports should have the reliability and performance of a Sinn sport or diver’s watch by their side.

This is the watch of the German Special forces. It is functionality reduced to the minimum. It is designed so that the wearer can read the time in a fraction of a second. The important elements are immediately readable ie the minute hand, hour hand and markers. All other elements on the dial are in matt red to visually down play their appearance and not detract from the main aspects of the dial. The inside of the pearl polished, sandblasted case is filled with pure oil. Another important feature is the fact that the screw-in crown has been moved to the left side of the case to 9 o’clock, ensuring optimal freedom of wrist movement, especially when a wet suit is being worn. The best testimonial for this watch is the fact that it is the preferred watch of the maritime unit of the GSG 9 whose divers, and their equipment, undergo the toughest professional demands. The sturdy, solid stainless steel case is complimented by an indestructible and fully adjustable stainless steel band. A very special feature of the dial design is the GSG 9 emblem set at 6 o’clock to pay tribute to the special forces unit and its members.

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NB: This feature is not linked to the web shop – it will just provide additional technical information and visualisation of the available options! For ordering one or more of the available options with your watch, please use the checkboxes below or leave us a comment accompanying your order!

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Band Variation

Leather Band, Silicone Strap, Solid Bracelet

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