The Sinn 103 St Leather 103.035 is a tremendous pilot chronograph with the impeccable Sinn quality, design and finishing level. 

The watch has all the basics right, such as 200m water resistance, lovely vintage acrylic glass, a very comfortable leather strap and a solid Concepto C99001 mechanical (automatic) chronograph movement. But it goes beyond that with a well-made bezel, DIN 8309 anti-magnetism and a very comfortable case design. 

Whether you are a pilot or not, this watch has combines a vintage design with contemporary quality and maintaining the true pedigree.