Watch Diving Watch U1 SDR Full Tegiment

On this version, the entire bracelet and case of the U1 have undergone TEGIMENT anti-impact treatment. This surface-hardening technology provides outstanding scratch resistance for stainless steel.

Please note: if the manufacturer does not have the watch in stock, the TEGIMENT treatment is applied on request by Sinn. Lead time can be up to 8 weeks. In that case, we will contact you directly.

With the SINN U 1, the engineers at SINN have succeeded in developing a dive watch whose materials and construction deliver outstanding resistance to external influences under the most extreme conditions.

The Watch
In the search for a steel capable of withstanding extreme conditions, SINN's engineers - working alongside German submarine manufacturers - developed a process to produce small quantities of the very same steel used in German submarines. This steel is not only extraordinarily resistant to water pressure, but also achieves the highest anti-magnetic rating with zero residual magnetism.

Topped with a flat sapphire crystal with double anti-reflective coating, the round stainless steel submarine case measures 44 mm in diameter, 14.3 mm thick, and weighs 113 grams. The black dial features luminescent white hands and hour markers, an orange seconds hand, and a date window at 3 o'clock. The screw-down crown is positioned at 4 o'clock.

The case features a black unidirectional rotating bezel that provides a visual countdown function. To prevent accidental rotation, the bezel is secured to the case so it cannot be lost. The steel bezel has undergone TEGIMENT anti-impact treatment - a surface-hardening technology that provides outstanding scratch resistance for stainless steel.

This watch comes fitted with a stainless steel bracelet and deployant clasp - ideal for scuba diving. Looking for a watch that can keep up with your deepest dives? This is the one. It is engineered to be water-resistant to 100 atmospheres, equivalent to 1,000 meters.

The Movement
This watch houses a Swiss Sellita SW200-1 automatic self-winding movement. This 26-jewel caliber displays hours, minutes, seconds, and the date. It features a Stop-Seconds mechanism for precise time-setting to the second. The movement operates at 28,800 vph with a power reserve of 38 hours.