Available NEW at Chronomaster from £1645.00

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

The 857 UTC TESTAF was tested and certified to the the “Technical Standard for Pilot Watches” (Technischer Standard Fliegeruhren – TESTAF) by the Aachen University of Applied Sciences. This establishes its suitability for professional use as a pilot watch. It is attested to by a certificate and the "TESTAF" quality seal on the dial.
The case of the 857 UTC TESTAF has been hardened with TEGIMENT Technology to make it especially scratch-resistant. The range of technologies also includes Ar-Dehumidifying Technology for greater functional reliability and freedom from fogging and overall functional reliability at temperatures between –45°C and +80°C. The 857 UTC TESTAF features a further time measurement element: a display for a second time zone on a 24-hour basis.


Mechanical Movement

ETA 2893-2
Self-winding mechanism
21 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN 8308
Anti-magnetic as per DIN 8309


Case made of stainless steel, bead-blasted
Sapphire crystal glass in front, anti-reflective on both sides
Case back screw-fastened
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 20 bar (= 200 m water depth)
Low pressure resistant


Hours, minutes, seconds
Second time zone on a 24-hour basis
Date display
Pilot’s bezel with minute ratcheting and luminous key mark

Sinn Technologies

TEGIMENT Technology, therefore especially scratch-resistant
Captive bezel
Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
Temperature resistance technology, therefore functionally reliable at temperatures from minus 45°C up to 80°C

Dimensions and Weight

Case diameter: 43 mm
Band lug width: 22 mm
Case thickness: 12 mm
Weight without strap: 90 gramme

Dial and Hands

Matte black dial
Numbers and indices coated with luminescent colour
Hour, minute and second hand coated with luminescent colour


3 years

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