Introduced by STOWA in 2013, the FLIEGER TESTAF TO1 is a new generation pilot watch which was created according to TESTAF, the new standard for pilot watches in the watch industry.

Since the late 1930‘s STOWA has been creating exceptional pilot watches offering high legibility in a simple classical design. Earlier the pilot watches were relatively big (55 mm diameter) so they could be worn for example over a leather jacket. STOWA always concentrated its attention on the future and reinterpreted the former pilot watches and developed them further by exploiting all technical possibilities.


TESTAF is the new standard for pilot watches in the watch industry developed by Fh Aachen to determine the regulations for modern wrist-pilot watches with analogue time display. Until now there was no clear definition for pilot watches (like for example for diving watches, DIN 8306/ISO 6425). Therefore the FH Aachen developed and submitted this new standard for pilot watches in cooperation with the German watch company Sinn. STOWA, with a 70 year experience in building pilot watches, decided immediately to participate in this certification procedure.

With the certification of the FH Aachen it will be possible for the first time to test the quality of the watch in a scientific developed procedure. Function, design and quality have to pass a complex testing procedure. STOWA is among the first brands to participate in this new project.

STOWA will continue to build traditional and historical seeming pilot watches, but its new model FLIEGER TO 1 TESTAF went one step further into the future by passing all TESTAF tests right away in the fall of 2013. In FLIEGER TESTAF TO1, STOWA has incorporated the following innovations to match the stringent regulations of TESTAF:-

  • Use of a titanium casing due to the magnetic signature of stainless steel (Stainless steel housing may influence the classical compass which is used in an airplane)
  • Un-detachable bezel construction
  • Special thick sapphire crystals to resist safely the shock testing
  • Viton seals for crown and case. Viton is a sealing material which is besides others used in space flights.
  • Special thick luminous colour coating in white (Superluminova BWG 9) achieve a perfect contrast.
  • Screwed lugs

Technical details
Diameter: 45/46 mm, height: 12.90 mm
Material: titanium, matt
Water proof: 20 bar = 200 meters waterproof according to DIN 8310
Low pressure proof by special thick crystal sealings
Bezel: turnable on both sides, un-detachable screwed construction
Cone: special thick diameter for improved stability
Crown: titanium
Seals: Viton on crown and case, a sealing material used at space flights
Crystal: AR-coated sapphire crystal on both sides, front sapphire crystal domed

Black matt, white printed, Superluminova BWG9 (white illuminating colour, at night light blue luminous)
Hands: Superluminova BWG 9

ETA 2824-2 in TOP quality, rhodium-coated, Genève strips finish, golden STOWA engraving, blued screws, shockproof acc. to DIN 8308, and antimagnetic acc. to DIN 8309

Buffalo leather or rubber strap fixed on very solid un-detachable and screwed lugs

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