Sinn 857 S Flieger Silicone Watch

857 Series: pilot watches with anti-magnetic protection.

The Watch

Topped with a flat sapphire crystal with double anti-reflective coating, the round case is crafted from stainless steel with a black PVD coating. It measures 43 mm in diameter, 12 mm thick, and weighs 90 grams.

The case is fitted with a black bidirectional rotating bezel that provides a visual countdown function. To prevent accidental rotation, the bezel is secured to the case in such a way that it cannot be lost. Both the case and bezel are treated with the anti-impact TEGIMENT technology - a surface-hardening process that offers highly effective protection against scratches on stainless steel.

The black dial features luminescent hands, Arabic numerals, and white indices that glow in the dark, along with a date window positioned at 4 o'clock.

It offers protection against magnetic fields up to 80,000 A/m, thanks to a dial and inner case back made from soft magnetic material. This structure prevents the watch from running erratically or stopping when exposed to magnetic fields generated by, for example, electric motors or speakers.

This watch comes fitted with a black silicone strap and a deployant clasp. Water-resistant to 20 ATM (200 meters), it's equally at home in the pool or on a deep dive.

This watch also features Sinn's patented Ar dehumidification technology. This innovation slows the aging process of the watch's internal components, extending the movement's service life. It also prevents condensation from forming on the crystal during sudden temperature changes.

The Movement

This watch houses a Swiss Sellita SW300-1 automatic self-winding movement. This 25-jewel caliber displays hours, minutes, seconds, and the date via a window. It is equipped with a Stop Seconds device for precise time setting to the second. The movement beats at 28,800 A/h with a 42-hour power reserve.