Case: Polished, stainless steel case with screw down case back and aluminum bezel. Screw down crown with guard. Acrylic crystal. Water resistant to 200 meters. Signed.

Dial: Matte black with cream-colored Super-LumiNova. White hands. Spiral tachymeter. Small seconds subdial at 9 o’clock. Signed.

Movement: Valjoux 2250, automatic. 25 jewels. Signed.

Ref. Modell 103 ST OU.

Case No. 292xx.

Diameter: 42mm, thickness: 15.5mm.

Circa 2012.

Condition: Presented with original box, papers, and original rally strap. 

More about Sinn:

Sinn Spezialuhren GmbH is a German watch manufacture based in Frankfurt. Founded in 1961 by Helmut Sinn, a former pilot and flight instruction, Sinn has quickly developed a reputation for its precise and durable tool watches, and in the 1970s, the manufacture produced watches for the German Air Force.

The present watch was produced as a limited-edition of 100 pieces and sold exclusively by the German retailer Manufactum.