Sinn Spezialuhren 900 HUMMER

The Sinn 900 HUMMER, reference 900.012, is a limited edition of 150 pieces with a 44 mm satinised steel case. This chronograph has a matte black dial beneath sapphire crystal, with small seconds, a date and a second time zone. An interior rotating bezel carries a tachymeter scale. TEGIMENT treatment hardens the case against scratches; the case measures 15.5 mm thick and is water resistant to 200 metres. Automatic calibre Valjoux 7750 has a seconds stop. Ar-Dehumidifying Technology prevents fogging, while the crown and push-pieces use the D3-System.