Sinn Black Silicone Strap Diving Watch UX GSG 9

The special forces mission counter. The operation that made Germany's GSG9 police special unit famous worldwide: the rescue of hostages from the Landshut hijacking, on 18/10/1977 in Mogadishu. That mission became as legendary as the dive watch worn by its members.

The Watch The defining feature of this watch is its proprietary Hydro technology. The movement, dial, and hands are immersed directly in a clear liquid with a refractive index identical to that of sapphire crystal, eliminating reflections on the dial and hands through the sapphire glass. This technology ensures perfect legibility and a watertight seal at any depth.

Fitted with a black silicone strap and a deployment clasp, this model delivers ultimate water resistance - rated to 500 ATM, meaning it can be submerged to a depth of 5,000 meters. The case itself is waterproof to 12,000 meters. Both ratings have been tested and certified by Germanischer Lloyd, the international naval classification and technical insurance organization.

In their search for a steel capable of withstanding extreme conditions, SINN's engineers - working alongside German submarine manufacturers - developed a limited production process for the same steel used in German submarines. This steel is not only extraordinarily waterproof, but also carries the highest antimagnetic rating with zero residual magnetism.

Topped with a flat sapphire crystal with dual anti-reflective coating, the round case is crafted from submarine steel. It measures 44 mm in diameter, 13.3 mm thick, and weighs 105 grams without the strap.

The case features a grey unidirectional rotating bezel with a visual countdown function. To prevent accidental rotation, the bezel is secured to the case so it cannot be lost. It has been treated with TEGIMENT anti-impact technology - a surface-hardening process that provides highly effective scratch protection for stainless steel.

The black dial features luminescent white hands and hour markers, a date window at 3 o'clock, and a screw-down crown positioned at 10 o'clock.

The Movement This watch houses a Swiss ETA 955.652 quartz movement. This 7-jewel caliber displays hours, minutes, seconds, and the date. It features a stop-seconds device for precise time-setting to the second.