857 S UTC Flieger Silicone Watch

Series 857: pilot watches built with magnetic field protection.

The Watch
Topped by 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 without the strap. The black dial features hands, Arabic numerals, and luminescent white indices, along with a date window at 4 o'clock. A 4^th hand displays a second time zone in 24-hour mode. The screw-down case back is nickel-free, and the crown at 3 o'clock is also screw-down.

The case features a black bidirectional rotating bezel that functions as a visual countdown timer. To prevent accidental rotation, the bezel is secured to the case in a way that ensures it cannot be lost.

This watch comes fitted with a black silicone strap and a deployment clasp. Designed for a water resistance of 20 atmospheres - approximately 200 meters - it is suitable for swimming and scuba diving.

Technical Specifications
The case and bezel have undergone TEGIMENT anti-impact treatment. This surface-hardening technology provides highly effective protection for stainless steel against scratches.

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

It also provides protection against magnetic fields up to 80,000 A/m, thanks to a dial and case back made of soft magnetic material. This design prevents any disruption or stoppage of the watch when exposed to magnetic fields generated by, for example, electric motors or loudspeakers.

The Movement
This watch houses a Swiss automatic Sellita SW330-1 movement. This 25-jewel caliber displays hours, minutes, seconds, and the date in a window. It also features a second time zone display in 24-hour mode. Equipped with a stop-seconds mechanism for precise time-setting to the second, this movement runs at 28,800 A/h with a 42-hour power reserve.