Pilot Chronograph 103 St Diapal Leather Watch

Uncompromising performance, even in the most demanding conditions. The pilot chronograph reflects the design of cockpit instruments, true to Sinn's heritage.

The Watch

Topped with a domed sapphire crystal with double anti-reflective treatment, the polished round stainless steel case measures 41 mm in diameter, 17 mm thick, and weighs 88 grams without the strap. The black dial features luminescent white hands, hour markers, and Arabic numerals, a date window at 3 o'clock, and three subdials. The small seconds subdial is at 9 o'clock, while the chronograph's 30-minute and 12-hour counters are at 12 o'clock and 6 o'clock respectively. The case is adorned with a black bi-directional bezel offering a visual countdown function. The screw-down crown and two screw-down chronograph pushers are on the right side of the case. The caseback is sapphire crystal, revealing the movement and its gear train.

This model also displays a 2nd time zone on a 12-hour scale via a 4th hand.

This watch features Diapal technology, which uses specific materials requiring no lubrication, extending the movement's running time and service life.

This watch also features Sinn's patented Ar dehumidification technology. This technology 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.

Thanks to these technologies, this version comes with a 5-year warranty.

Fitted with a black leather strap with a steel pin buckle, this watch is water-resistant to 20 atmospheres (200 m). It can be used for swimming and scuba diving.

The Movement

This watch houses an automatic movement by La Joux Perret, specifically caliber LJP 8000. This 28-jewel caliber displays hours, minutes, seconds via a dedicated small seconds subdial, as well as date and day. It features a Stop-Seconds device for precise time-setting to the second. It includes a chronograph function with 30-minute and 12-hour counters. The movement beats at 28,800 A/h and offers a 48-hour power reserve.