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Sinn Flieger 857 UTC TESTAF Automatic Pilots Watch SIN 202
  • BandLeather Strap
  • Case MaterialSteel
  • ConditionBrand New
  • MovementAutomatic

Sinn Flieger 857 UTC TESTAF Automatic Pilots Watch

Sinn Flieger 857 TESTAF Automatic Wristwatch. What is it that represents a professional pilot watch? Which in-flight needs of the pilot must it meet? Which features are essential? The 857 TESTAF provides the answers to these questions. This is because it was tested and certified by Aachen University of Applied Sciences in accordance with the technical standard for pilot watches (Technischer Standard Fliegeruhren, TESTAF). This is documented by a certificate and the TESTAF quality seal on the dial. TESTAF guarantees that the 857 TESTAF fulfil all requirements of time measurement during flight operations, both under visual flight rules (VFR) and instrument flight rules (IFR), and that it is suitable for professional use as a pilot watch. In this sense, the 857 TESTAF serves as an additional safety system for planning and carrying out necessary flight manoeuvres using a pilot watch. This means, for example, that the 857 TESTAF ensures the elapsed times (second stop and minute stop) are perfectly readable, even at night. It thus fulfils an essential condition for IFR certification. The 857i TESTAF safety concept is rounded off with SINN technologies such as Ar-Dehumidifying Technology for increased reliability and freedom from fogging, as well as functional reliability in a temperature range of –45C to +80C. The pilot’s bezel with minute ratcheting has a captive connection to the case. Aachen University of Applied Sciences provides detailed information about TESTAF at www.testaf.org. It is tested and certified to the Technical Standard for Pilot’s Watches (TESTAF) by the Aachen University of Applied Sciences. Case made of titanium, bead-blasted Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging. Functionally reliable from –45°C up to +80°C. Captive pilot's bezel with minute ratcheting. Sapphire crystal glass. Transparent back made of sapphire crystal glass. Pressure-resistant to 20 bar (= 200 m water depth). Low pressure resistant. The movement is a Swiss made automatic Seletta mechanism, 25 bearing jewels, 28,800 semi-oscillations per hour. Seconds stop function. Shock resistant as per DIN 8308. Anti-magnetic as per DIN 8309. The 856 UTC is almost the same as the 656 in most respects, just incorporating the UTC dual time movement. The UTC hand is independently settable so can be used as a GMT hand or a dual time zone hand. Width is 43 mm at widest excluding crown and 45 mm including crown, Lug to lug is 46 mm, Thickness is 11.5 mm


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