Sinn 857 Pilot Anti-Magnetic Black Chronissimo Strap Std Length

The Sinn 857 watches are a family of pilot’s watches that have been precisely engineered to be functional and reliable for use in aviation. Each watch in the collection has been designed with the traditional Sinn cockpit navigation clock in mind, giving them a classic, vintage look. Sinn has created cockpit clocks since the brand was founded, giving them over 60 years of experience in building them. The brand has brought the cockpit clock into the modern day by launching the 857 collection that brings all of the functionality of a cockpit navigation clock to the wristwatch. Sinn is known for pushing their watches to the limits, and this collection is no exception having been designed to be dependable even in adverse circumstances. 

Core Features of the Sinn 857 Collection: 

• The watches of the 857 collection are designed to be functional instrument watches that are reminiscent of the tradition of Sinn’s cockpit navigation clocks. 
• All of the watches feature a captive pilot’s bezel with minute ratcheting. The bezel is treated with TEGIMENT Technology and is made of a black, anodised aluminium ring with silver labelling. It features a luminous triangular key mark and cannot be moved unintentionally. 
• The dial of each 857 watch is protected by scratch-resistant sapphire glass that has been treated to be anti-reflective on both sides. 
• Sinn’s Ar-Dehumidifying Technology enhances the functional reliability of each watch and ensures reduction of fogging. 
• Every 857 watch has Magnetic Field Protection of up to 80,000 A/m. 
• The watches are water-resistant and pressure-resistant up to 20 bar, meeting the technical requirements for waterproofness, as set out in standard DIN 8310. The water-resistance is furthered by the screw-fastened nickel-free case back and screwable crown. The watches are also resistant to low pressure. 
• Each 857 watch has a case diameter of 43mm, a band lug width of 22mm, and a case thickness of 12mm. They each weigh 90 grams without a strap. 

Model Specifications 857.012 CHRONISSIMO

• This model features a case made from bead-blasted stainless-steel that has been treated with TEGIMENT Technology. 
• The matte black dial features a date aperture at 4 o’clock. 
• This watch is powered by an SW 300-1 self-winding mechanism. It uses 25 bearing jewels and 28,800 semi-oscillations per hour to power the watch. It also features a seconds stop function and is anti-magnetic as per DIN 8309. 
• The dial features baton indices with Arabic indices at 3, 6, 9, and 12. Indices mark the hours and minutes for optimal timekeeping. 
• The numbers, indices, and hour and minute hands are coated with luminescent colour. 
• This model is finished with a black cowhide leather strap that is integrated into the case. The strap has white contrast stitching and fastens with a pin buckle.